layers: Add pNext cycle/redundancy checks to PV
layers: Add pNext cycle/redundancy checks to PV

Change-Id: I06d311821ef0c10683ad8bdaf076231143cde22f

KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers