Modified frequency changed event to framework am: 65a724befe am: c36b8e676f am: 61ceac9ec0

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

Change-Id: Iffb3052963b51c6f7ee770fcd309dc9dd403b7c9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>