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
Change-Id: I7f3c8d7c65373570193fe5fde940698c1eb3f3e9