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: Ic253177c769be57e77eeb1e5e86b7062b7c276a0