Rename is_empty -> is_oob_data_empty am: 21d3eac2

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2869595



Change-Id: I444f995ede466591e20d55f17840c49474ad055b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>