Changes to gtest bp to supported isolated change am: d70c7ca434 am: 9693bd71df am: 6c075b1040 am: 12124d8d5e

Original change: https://android-review.googlesource.com/c/platform/system/testing/gtest_extras/+/2069568

Change-Id: I5907d715f8299e46c5b71c282a1cc1d5a62ad441
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>