Vulkan: Always use depth<=256 AHB image siblings Android will sometimes use an uninitialized value for the layerCount, which results in huge, many-GB allocations down the line. If we see a big value there, force to 1. Bug: b/223456677 Change-Id: I201e9901d9c726a9af73d025ac33850d11a5a38a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3764433 Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Lingfeng Yang <lfy@google.com> Commit-Queue: Lingfeng Yang <lfy@google.com>