Camera: update camera audio restriction API

Add dedicated get API for API review feedback.

Test: updated CTS pass
Bug: 140524714
Change-Id: I0559e24d6d9f4a2d9db6c0b6035eaf49bd41d950
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index 9ba6553..a503838 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -2507,11 +2507,16 @@
     return level == API_2;
 }
 
-int32_t CameraService::BasicClient::setAudioRestriction(int32_t mode) {
+status_t CameraService::BasicClient::setAudioRestriction(int32_t mode) {
     {
         Mutex::Autolock l(mAudioRestrictionLock);
         mAudioRestriction = mode;
     }
+    sCameraService->updateAudioRestriction();
+    return OK;
+}
+
+int32_t CameraService::BasicClient::getServiceAudioRestriction() const {
     return sCameraService->updateAudioRestriction();
 }