Bluetooth: Add sar_test in userdebug build am: 4dec5367a1 am: 59748fcfde am: b3d2d88016

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

Change-Id: I2371d90572d63b09895672b3f9d37864fd29bf32