Fix bug where mMixerStatus was set to IDLE

Change-Id: I55df1738fb7ba17ba6caeea6a17557526eac17a7
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index d537a20..81b9464 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1463,7 +1463,7 @@
         // but it would be safer to explicitly pass initial masterVolume as parameter
         mMasterVolume(audioFlinger->masterVolumeSW_l()),
         mLastWriteTime(0), mNumWrites(0), mNumDelayedWrites(0), mInWrite(false),
-        // mMixerStatus
+        mMixerStatus(MIXER_IDLE),
         mPrevMixerStatus(MIXER_IDLE),
         standbyDelay(AudioFlinger::mStandbyTimeInNsecs)
 {
@@ -2031,7 +2031,6 @@
 
         processConfigEvents();
 
-        mMixerStatus = MIXER_IDLE;
         { // scope for mLock
 
             Mutex::Autolock _l(mLock);