Make sure sepolicy only merges on upstream am: 8f4e1d8bc6 am: fa052a4d9b am: 0be0f91a35

Original change: https://android-review.googlesource.com/c/device/google/bonito-sepolicy/+/1763388

Change-Id: I19cf5005a708562a412fb63b429fa55bcfe5226b