Export app-toolkit prebuilts to public-master.

Bug: 71540048
Test: make ANDROID_BUILDSPEC=vendor/google/build/app_build_spec.mk -j
Change-Id: Icd41e24d6791147f18fbf1a6a465d05220c8a965
Merged-In: I0330e0b919a68af5c41398ed15dc2fcec1431bdb
29 files changed