minigbm: i915: call DRM_IOCTL_I915_GEM_SET_DOMAIN when invalidating

minigbm: i915: call DRM_IOCTL_I915_GEM_SET_DOMAIN when invalidating

In the kernel, the i915_gem_set_domain_ioctl function calls these
functions:

	- i915_gem_object_set_to_gtt_domain
	- i915_gem_object_set_to_cpu_domain

These functions do various interesting things with caches, and some
CTS tests require this to pass.

BUG=b:67073097, b:67331142, chromium:764871
TEST=The following tests:

android.view.cts.SurfaceViewSyncTests
android.video.cts.VideoEncoderDecoderTest#testAvcGoog0Qual0720x0480
android.video.cts.VideoEncoderDecoderTest#testAvcGoog0Qual1280x0720
android.video.cts.VideoEncoderDecoderTest#testAvcGoog0Qual1920x1080
android.media.cts.EncodeDecodeTest#testVP8EncodeDecodeVideoFromSurfaceToSurface720p
android.media.cts.EncodeDecodeTest#testEncodeDecodeVideoFromPersistentSurfaceToSurface720p
android.media.cts.EncodeDecodeTest#testVP8EncodeDecodeVideoFromPersistentSurfaceToSurface720p

passes on Eve with the next patch applied.

Change-Id: I9acc14580f65eab6039d8b354bfbf51c31dfcf14
Reviewed-on: https://chromium-review.googlesource.com/710323
Commit-Ready: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>