Merge \\"Update validation-layer.jd for NDK-R12: use packed layer binaries ...
Merge \\"Update validation-layer.jd for NDK-R12: use packed layer binaries punt building layers to Khronos github repo\\" into nyc-dev am: da66010c
am: ab45c9df
Change-Id: I52ac4ddada6748596757c31f944adb8d7c8e7995