only gaurd sepolicy and mk files am: 2594d56e24

Original change: https://android-review.googlesource.com/c/device/google/gs-common/+/2787712

Change-Id: I863f2e180c6d93cd262da43abf39dfe136397f65
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>