Add sepolicy for aidl bt extension hal in grilservice app am: 96c3e98e10 am: 3c57d89c59

Original change: https://googleplex-android-review.googlesource.com/c/device/google/pantah-sepolicy/+/23053800

Change-Id: I0583fba270e15b7a97d04d3697de9a6fd910d1b0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>