layers: Modify PV to ignore FORMAT_NOT_SUPPORTED
layers: Modify PV to ignore FORMAT_NOT_SUPPORTED

This return code is now ignored by the Get*ImageFormatProperties*
APIs. Printing a message for this usage was just noisy.

Change-Id: I0cbd1b1a4cfa4761092a647d7912b1d590fcc89b

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