amdgpu: Align stride to 512 for multiplane formats

Quick fix to ensure subsample stride is aligned to 256 for multiplane formats.

BUG=b:171013552
TEST=CtsMediaTestCases passes on zork

Change-Id: I0f47ae3585e5875f3e35cbb667cb7a0ab6421898
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/2477987
Reviewed-by: Bas Nieuwenhuizen <basni@chromium.org>
Commit-Queue: Drew Davenport <ddavenport@chromium.org>
Tested-by: Drew Davenport <ddavenport@chromium.org>
(cherry picked from commit 8db36fe931e984eb53f5b9a6d7b326930afe6609)
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/2482663
Reviewed-by: Drew Davenport <ddavenport@chromium.org>
1 file changed