Improve audio logs and dumpsys media.audio_flinger

Include mFrameCount in shared memory corrupt error log.

Fix typo in log for primary audio interface.

Include the new server frame count in logs for fast tracks.

Always log when fast is successful for output tracks, as it helpful
  (was already there for input).

Cleanup dumpsys for threads.

Test: builds OK, and logs contain more information
Change-Id: I2b5b4d700e8eb7c261a3125fb03ddc00bf08537e
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index 8270e74..cc66cad 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -31,6 +31,7 @@
         RECORD,             // Thread class is RecordThread
         OFFLOAD,            // Thread class is OffloadThread
         MMAP                // control thread for MMAP stream
+        // If you add any values here, also update ThreadBase::threadTypeToString()
     };
 
     static const char *threadTypeToString(type_t type);