[LSC] Add LOCAL_LICENSE_KINDS to system/testing/gtest_extras am: 192ca88999 am: 8f63b7101b am: d156663397 am: 6df0e556a0

Original change: https://android-review.googlesource.com/c/platform/system/testing/gtest_extras/+/1588968

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ifb1b9a1f3b6895601f3496102f6a0d63d0dca842