Fix issue 1999585: audioflinger crash.
Fix issue 1999585: audioflinger crash.

We were looping on the number of playback threads when dumping record threads.

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base