freedreno/ir3: Remove legacy packed-struct encoding

Note that we can't actually remove the packed structs themselves yet,
because tu still uses them in some hand-coded blit shaders.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <!7997>
54 jobs for !7997 with wip/ir3xml in 19 minutes and 47 seconds (queued for 5 seconds)
detached
Status Job ID Name Coverage
  Sanity
passed #6635507
sanity

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  Container
passed #6635512
aarch64
arm_build

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arm_test-base

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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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arm64_test

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armhf_test

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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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meson-android

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aarch64
meson-arm64

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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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kvm
meson-ppc64el

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kvm
meson-s390x

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scons-win64

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  Freedreno
passed #6635591
google-freedreno-db410c
arm64_a306_gles2

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google-freedreno-db410c
arm64_a306_gles3

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google-freedreno-db410c
arm64_a306_gles3_options

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passed #6635598
google-freedreno-db820c
arm64_a530_gles2 1/2

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google-freedreno-db820c
arm64_a530_gles2 2/2

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google-freedreno-db820c
arm64_a530_gles3

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google-freedreno-db820c
arm64_a530_gles31

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google-freedreno-db820c
arm64_a530_piglit_shader

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google-freedreno-cheza
arm64_a630_gl

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google-freedreno-cheza
arm64_a630_gles2

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google-freedreno-cheza
arm64_a630_gles3

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google-freedreno-cheza
arm64_a630_gles31

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google-freedreno-cheza
arm64_a630_gles_others

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google-freedreno-cheza
arm64_a630_piglit_shader

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google-freedreno-cheza
arm64-a630-traces

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google-freedreno-cheza
arm64_a630_vk 1/2

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google-freedreno-cheza
arm64_a630_vk 2/2

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google-freedreno-cheza
arm64_a630_vk_sysmem

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  Deploy
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test-docs-mr

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