Make tee sink work again

It was broken by this earlier change to NBAIO:
  > Change-Id: I5eda412648b094358f5eefc38300e9ec8a734cd3
But the code was not being compiled, so the error was not caught earlier.

Also increase the default size of per-track pipe to a reasonable value.

Change-Id: Ica05017e6c6533e1fea9df379a9b204eebed4a1f
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 4799beb..e7d1483 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -638,7 +638,7 @@
     // 0x200000 stereo 16-bit PCM frames = 47.5 seconds at 44.1 kHz, 8 megabytes
     static const size_t kTeeSinkInputFramesDefault = 0x200000;
     static const size_t kTeeSinkOutputFramesDefault = 0x200000;
-    static const size_t kTeeSinkTrackFramesDefault = 0x1000;
+    static const size_t kTeeSinkTrackFramesDefault = 0x200000;
 #endif
 
     // This method reads from a variable without mLock, but the variable is updated under mLock.  So