layers: Enable autogen'd procmap for PV
layers: Enable autogen'd procmap for PV

Routines and tables were previously hard-coded. They are now
generated from vk.xml.

Change-Id: I26c98bb42c9ccc287e9dd4c12447d66ea1c68d91

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