Update validation-layer.jd for NDK-R12: use packed layer binaries punt...
Update validation-layer.jd for NDK-R12: use packed layer binaries punt building layers to Khronos github repo am: c1755d34 am: 999b7afa
am: 3c76d062
Change-Id: Ie9bbfe3e7238dbf4e993a3478b93c89404e79bec