msm: Update P010 stride alignment

V4L2 aligns the stride of P010 to 256 while
NV12 is aligned to 128.  Previously the width
was doubled, but not the alignment.

BUG=b:259594959
TEST=v4l2_stateful_decoder -f test-25fps.vp9_2 -c P010 -w -m 1

Change-Id: I35f566178f02e2506861930cb348c05f9b5e27b8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/4214566
Commit-Queue: Fritz Koenig <frkoenig@chromium.org>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Tested-by: Fritz Koenig <frkoenig@chromium.org>
Reviewed-by: Nathan Hebert <nhebert@chromium.org>
1 file changed