amdgpu: Remove 256 alignment workaround

Tiled buffers do not need 256 alignment, and doing so leads to failing
new sanity checks added in a more recent mesa version [1].

The underlying problem for android (different map-time and allocation-time
strides for tiled buffers) is worked around in another way.

[1] https://chromium.googlesource.com/chromiumos/third_party/mesa/+/f7a4051b836/src/amd/common/ac_surface.c#2791

BUG=b:190028349
TEST=Pass CtsNativeHardwareTestCases on zork and grunt

Change-Id: I72f67f1bc089a27b187024df64280efbd8465217
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/2952005
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Drew Davenport <ddavenport@chromium.org>
Commit-Queue: Drew Davenport <ddavenport@chromium.org>
1 file changed