Prepare for move to hardware/google/gfxstream

Move codegen into what will become
hardware/google/gfxstream/codegen/vulkan
and move generated vulkan headers into what will become
hardware/google/gfxstream/common/vulkan.

Bug: 271464937
Test: presubmit
Test: python android/build/python/cmake.py --gfxstream
Change-Id: Ie0465ac72b4a2f7444b595cd1421e2e3cb1d0997
180 files changed