Use correct type for hardware call state

Change-Id: Ic6d98b129e3ec653df1d8f7e829adf8dccb4f378

services/audioflinger/AudioFlinger.cpp

@@ -295,7 +295,7 @@ status_t AudioFlinger::dumpInternals(int fd, const Vector<String16>& args)
     const size_t SIZE = 256;
     char buffer[SIZE];
     String8 result;
-    int hardwareStatus = mHardwareStatus;
+    hardware_call_state hardwareStatus = mHardwareStatus;
 
     snprintf(buffer, SIZE, "Hardware status: %d\n", hardwareStatus);
     result.append(buffer);

services/audioflinger/AudioFlinger.h

@@ -1383,7 +1383,7 @@ private:
                 mutable     Mutex                   mHardwareLock;
                 audio_hw_device_t*                  mPrimaryHardwareDev;
                 Vector<audio_hw_device_t*>          mAudioHwDevs;
-    mutable     int                                 mHardwareStatus;
+    mutable     hardware_call_state                 mHardwareStatus;    // for dump only
 
 
                 DefaultKeyedVector< int, sp<PlaybackThread> >  mPlaybackThreads;