Modified frequency changed event to framework am: 65a724befe am: c36b8e676f am: 8fc512fa81

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/wpa_supplicant_8/+/18583204

Change-Id: I3aef3a43b2bd8e3356d6e12a878c073302e5a8e5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>