i915/gen12: Fix plane offset for Y-tiling

BUG=b:210276702
TEST=android.graphics.cts.MediaVulkanGpuTest

Change-Id: I66dc6baacf2eb8487d535c544d8bfd9225b8592e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/3421573
Tested-by: Chad Versace <[email protected]>
Auto-Submit: Chad Versace <[email protected]>
Reviewed-by: Yiwei Zhang <[email protected]>
Commit-Queue: Yiwei Zhang <[email protected]>
1 file changed