Bluetooth: Add sar_test in userdebug build am: 4dec5367a1 am: f8e8860e69 am: 8021ebb984

Original change: https://googleplex-android-review.googlesource.com/c/device/google/raviole/+/15297638

Change-Id: I145623634131d18499b7deb5a25a879035eea941