layers: LX273, Fix accessMask validation for depth/stencil input attachments
layers: LX273, Fix accessMask validation for depth/stencil input attachments

When using an imageView of a depth/stencil image to populate a descriptor set,
the aspectMask must only include one bit and selects whether the imageView is
used for depth reads or stencil reads.

KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools