Modified frequency changed event to framework am: 65a724befe

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

Change-Id: I1b82cfecbe772d23b5fff34eeb480e5e11d615a9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>