freedreno/headergen2: Fix compile warnings with CP_DRAW_INDIRECT_MULTI

Using stripes to deal with the different packet layout variants resulted
in redefining "register" offsets with different values, so use "prefix"
to add a suffix to disambiguate.

  drivers/gpu/drm/msm/adreno/adreno_pm4.xml.h:1066: warning: "REG_A6XX_CP_DRAW_INDIRECT_MULTI_INDIRECT" redefined
   1066 | #define REG_A6XX_CP_DRAW_INDIRECT_MULTI_INDIRECT  0x00000006
        |
  drivers/gpu/drm/msm/adreno/adreno_pm4.xml.h:1057: note: this is the location of the previous definition
   1057 | #define REG_A6XX_CP_DRAW_INDIRECT_MULTI_INDIRECT  0x00000003
        |

(Admittedly it isn't really a "prefix" but that was the field in the
schema available to use, and REG_INDEXED_CP_DRAW_INDIRECT_MULTI_STRIDE
sounds somewhat more funny.)

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <!10944>
57 jobs for !10944 with afuc/emu in 24 minutes and 38 seconds (queued for 6 seconds)
latest detached
Status Job ID Name Coverage
  Sanity
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sanity

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  Container
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aarch64
arm_build

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windows shell 1809 mesa
windows_build_vs2019

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x86_build-base

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x86_test-base

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  Container 2
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android_build

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i386_build

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kernel+rootfs_amd64

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aarch64
kernel+rootfs_arm64

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aarch64
kernel+rootfs_armhf

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ppc64el_build

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s390x_build

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x86_build

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x86_test-gl

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x86_test-vk

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  Meson X86 64
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meson-clang

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meson-clover

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meson-clover-testing

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meson-gallium

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meson-release

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meson-testing

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meson-testing-asan

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meson-vulkan

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  Build Misc
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arm_test

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meson-android

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aarch64
meson-arm64

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aarch64
meson-arm64-asan

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aarch64
meson-arm64-build-test

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aarch64
meson-armhf

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meson-i386

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meson-mingw32-x86_64

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  Freedreno
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google-freedreno-db410c
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google-freedreno-db410c
a306_gles3 1/3

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google-freedreno-db410c
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google-freedreno-db410c
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google-freedreno-db410c
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google-freedreno-db410c
a306-traces

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google-freedreno-db820c
a530_gles2

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google-freedreno-db820c
a530_gles31 1/2

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google-freedreno-db820c
a530_gles3 1/2

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google-freedreno-db820c
a530_gles31 2/2

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google-freedreno-db820c
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google-freedreno-db820c
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google-freedreno-db820c
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google-freedreno-db820c
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google-freedreno-cheza
a630_egl

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google-freedreno-cheza
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google-freedreno-cheza
a630_gles2

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google-freedreno-cheza
a630_gles3

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google-freedreno-cheza
a630_gles31

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google-freedreno-cheza
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google-freedreno-cheza
a630_piglit

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google-freedreno-cheza
a630-traces

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google-freedreno-cheza
a630_vk 1/2

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google-freedreno-cheza
a630_vk 2/2

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google-freedreno-cheza
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google-freedreno-db820c
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