anv: Stop using the i915 engines API for now

This disables anv's usage of I915_CONTEXT_PARAM_ENGINES.  We're
currently in the process of trying to clean up some of the i915 uAPI.
One of those messes is the engine/context/vm APIs.  The current Mesa
code uses that API completely differently from media and compute.  It
was landed a little over 6 weeks ago, doesn't enable any new features
today, and isn't in any release.  As far as kernel uAPI backwards-
compatibility goes, it should be safe to shut it off and pretend it
never happened.  This gives us a bit more flexibility as we re-evaluate
the kernel APIs.

Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
35 jobs for !9642 with review/anv-no-engines in 9 seconds (queued for 2 seconds)
latest detached
Status Job ID Name Coverage
  Sanity
passed #8084357
sanity

00:00:09

 
  Container
manual #8084363
aarch64 manual
arm_build
manual #8084364
manual
arm_test-base
manual #8084366
windows shell 1809 mesa manual
windows_build_vs2019
manual #8084359
manual
x86_build-base
manual #8084361
manual
x86_test-base
 
  Container 2
created #8084381
android_build
created #8084386
arm64_test
created #8084388
armhf_test
created #8084376
i386_build
created #8084369
kernel+rootfs_amd64
created #8084371
aarch64
kernel+rootfs_arm64
created #8084372
aarch64
kernel+rootfs_armhf
created #8084378
ppc64el_build
created #8084380
s390x_build
created #8084374
x86_build
created #8084383
x86_test-gl
created #8084385
x86_test-vk
 
  Meson X86 64
created #8084398
meson-clang
created #8084399
meson-clover
created #8084393
meson-clover-testing
created #8084395
gstreamer
meson-gallium
created #8084397
meson-release
created #8084390
meson-testing
created #8084392
meson-testing-asan
created #8084401
meson-vulkan
 
  Build Misc
created #8084403
meson-android
created #8084407
aarch64
meson-arm64
created #8084408
aarch64
meson-arm64-asan
created #8084410
aarch64
meson-arm64-build-test
created #8084405
aarch64
meson-armhf
created #8084412
meson-i386
created #8084418
meson-mingw32-x86_64
created #8084416
kvm
meson-ppc64el
created #8084414
kvm
meson-s390x