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: 9463baa9
Change-Id: I2d541821d8becd527aad2dcd5a1bf9179b8b4c23