Modified frequency changed event to framework

Removed the logic to send frequency
changed event to framework, on receiving
WPA_BSS_FREQ_CHANGED_FLAG attribute change.
This is because, this event is specific to
STA side functionality. Added a new frequency
changed notification handler. Send the new
frequency to framework from this handler.

Bug: 233074707
Test: Manual - Established P2P connection & confirmed from logs
      that channel change event is received correctly on
      framework side(used wpa_cli -i<ifname>
      chan_switch 10 2412 0 2412 2412 to trigger channel switch)
Change-Id: I75d3c9ad3ab357ee0d8d9e58bf38870bb3a21e98
diff --git a/wpa_supplicant/aidl/aidl.h b/wpa_supplicant/aidl/aidl.h
index d9ab7bd..2f3c7a0 100644
--- a/wpa_supplicant/aidl/aidl.h
+++ b/wpa_supplicant/aidl/aidl.h
@@ -126,7 +126,7 @@
 	void wpas_aidl_notify_transition_disable(
 		struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, u8 bitmap);
 	void wpas_aidl_notify_network_not_found(struct wpa_supplicant *wpa_s);
-	void wpas_aidl_notify_bss_freq_changed(struct wpa_supplicant *wpa_s);
+	void wpas_aidl_notify_frequency_changed(struct wpa_supplicant *wpa_s, int frequency);
 	void wpas_aidl_notify_ceritification(struct wpa_supplicant *wpa_s,
 		int depth, const char *subject,
 		const char *altsubject[],
@@ -293,7 +293,7 @@
 {}
 static void wpas_aidl_notify_network_not_found(struct wpa_supplicant *wpa_s)
 {}
-void wpas_aidl_notify_bss_freq_changed(struct wpa_supplicant *wpa_s)
+void wpas_aidl_notify_frequency_changed(struct wpa_supplicant *wpa_s, int frequency)
 {}
 void wpas_aidl_notify_ceritification(struct wpa_supplicant *wpa_s,
 	int depth, const char *subject,