Represent NAN callback events as a bitmap am: 3f7bfd2dc5

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/24029040

Change-Id: Ifcee3c8f59ede7096cab5ac219e6c64b3ffcadeb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>