Vulkan: Selectively enable input attachment usage bit Add VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT iff supportsShaderFramebufferFetchDepthStencil feature is enabled. Also, add noncoherent qualifier in a few FramebufferFetchTest Bug: angleproject:352364582 Change-Id: I09c54a8d738b5cb4cbcf2716cdbff0c0ec9e31cf Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6181497 Commit-Queue: mohan maiya <m.maiya@samsung.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>