Import AndroidX from build 6196965

./prebuilts/sdk/update_prebuilts.py 6196965 --stx

Test: make ANDROID_BUILDSPEC=vendor/google/build/app_build_spec.mk -j32
Bug: 146454892,147750984

Change-Id: I0bd9d08d7f61d7b7f04959e49f8f94c4417fb4f8
836 files changed