Merge branch 'scygan-image_atomic_ops-non_square_cubes' into 'vulkan-cts-1.0-dev'

Fix non-square cube image faces in dEQP-VK.image.atomic_operations.*.cube* tests

Some of the new image atomic aperations are trying to use images with non-square faces as cubes and cube map images.

See merge request !496

diff --cc external/vulkancts/modules/vulkan/image/vktImageAtomicOperationTests.cpp
Simple merge