legacy: null pointer check stack/rfcomm/rfc_utils::rfc_sec_check_complete am: b428cb20

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2040956



Change-Id: I46ebf2ad787a49b7eaa4e72c9c39197901341e32
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>