Fix ST array storage for vulkan memory barriers.

Change-Id: Icd8d72df4412e899c940a3d6f6ffa2aa961849ab
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/332605
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
2 files changed