Changes to gtest bp to supported isolated change am: d70c7ca434 am: 9693bd71df

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

Change-Id: I452c12f26825b659ba32182813c5086f46f8b4fe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>