audio policy: fix sensor privacy listener

Current way of registering to the sensor privacy listener works
only when disabling sensors from the developer settings.
This CL also registers a listener for when the mic privacy toggle
is used.
This change is temporary until problems around app ops start/stop
notifications from audio framework are sorted out and we can rely
on app ops to silence audio when the mic privacy toggle is used.

Test: make
Bug: 258021433
Change-Id: I1178a15583596cd025d5cb1e424f9fe3bf7854b4
Merged-In: I1178a15583596cd025d5cb1e424f9fe3bf7854b4
(cherry picked from commit 60aa4d06161f40e9f18c44caf0fc057b86deceb9)
Merged-In: I1178a15583596cd025d5cb1e424f9fe3bf7854b4
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index e7d945f..bfce4ba 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -1803,12 +1803,14 @@
 void AudioPolicyService::SensorPrivacyPolicy::registerSelf() {
     SensorPrivacyManager spm;
     mSensorPrivacyEnabled = spm.isSensorPrivacyEnabled();
+    (void)spm.addToggleSensorPrivacyListener(this);
     spm.addSensorPrivacyListener(this);
 }
 
 void AudioPolicyService::SensorPrivacyPolicy::unregisterSelf() {
     SensorPrivacyManager spm;
     spm.removeSensorPrivacyListener(this);
+    spm.removeToggleSensorPrivacyListener(this);
 }
 
 bool AudioPolicyService::SensorPrivacyPolicy::isSensorPrivacyEnabled() {