Use audio_module_handle_t and audio_patch_handle_t consistently

Bug: 27814144
Change-Id: I54b7a73ec318779fd3addb060998f4d94141152d
diff --git a/services/audiopolicy/service/AudioPolicyClientImpl.cpp b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
index 08f9cc1..dbcc070 100644
--- a/services/audiopolicy/service/AudioPolicyClientImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
@@ -30,7 +30,7 @@
     sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
     if (af == 0) {
         ALOGW("%s: could not get AudioFlinger", __func__);
-        return 0;
+        return AUDIO_MODULE_HANDLE_NONE;
     }
 
     return af->loadHwModule(name);
diff --git a/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp b/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp
index 580d740..09a931f 100644
--- a/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp
+++ b/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp
@@ -111,7 +111,7 @@
                                          uint32_t *pLatencyMs,
                                          audio_output_flags_t flags)
 {
-    return open_output((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask,
+    return open_output(AUDIO_MODULE_HANDLE_NONE, pDevices, pSamplingRate, pFormat, pChannelMask,
                           pLatencyMs, flags, NULL);
 }
 
@@ -219,7 +219,7 @@
                                         audio_channel_mask_t *pChannelMask,
                                         audio_in_acoustics_t acoustics __unused)
 {
-    return  open_input((audio_module_handle_t)0, pDevices, pSamplingRate, pFormat, pChannelMask);
+    return  open_input(AUDIO_MODULE_HANDLE_NONE, pDevices, pSamplingRate, pFormat, pChannelMask);
 }
 
 audio_io_handle_t aps_open_input_on_module(void *service __unused,