Use audio_patch_handle_t in startAudioSource() and stopAudioSource()

Bug: 27903060
Change-Id: Iafc2095f484b74978c6f080c54f548e293bf945e
diff --git a/include/media/IAudioPolicyService.h b/include/media/IAudioPolicyService.h
index ef15a0c..5637dd5 100644
--- a/include/media/IAudioPolicyService.h
+++ b/include/media/IAudioPolicyService.h
@@ -164,8 +164,8 @@
 
     virtual status_t startAudioSource(const struct audio_port_config *source,
                                       const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle) = 0;
-    virtual status_t stopAudioSource(audio_io_handle_t handle) = 0;
+                                      audio_patch_handle_t *handle) = 0;
+    virtual status_t stopAudioSource(audio_patch_handle_t handle) = 0;
 
     virtual status_t setMasterMono(bool mono) = 0;
     virtual status_t getMasterMono(bool *mono) = 0;