jni: fix method signature

Change-Id: I962d09bc84c12a9f957ec626de9dbebe5b31611c
Refs: #46447

daemon/src/client/android/callmanager_jni.cpp

@@ -56,7 +56,7 @@ void CallManager::recordPlaybackStopped(const std::string& path)
 
 }
 
-void CallManager::voiceMailNotify(const std::string& callID, const std::string& nd_msg)
+void CallManager::voiceMailNotify(const std::string& callID, const int32_t& nd_msg)
 {
 
 }