audio: new routing strategies and stream types

Added new routing strategies and stream type for internal use
by audio policy manager and audio flinger:
- One for accessibility to allow different routing than media
- One for re-routing (remote submix) in preparation of dynamic
policies
- Added stream type for "internal" audio flinger tracks used
for audio patches and duplication.

Bug: 18067208.
Change-Id: I88f884b552e51e4a49c29125e5a1204cf58ff434
diff --git a/services/audiopolicy/AudioPolicyEffects.h b/services/audiopolicy/AudioPolicyEffects.h
index 6b0d538..3dec437 100644
--- a/services/audiopolicy/AudioPolicyEffects.h
+++ b/services/audiopolicy/AudioPolicyEffects.h
@@ -151,7 +151,7 @@
     static const char * const kInputSourceNames[AUDIO_SOURCE_CNT -1];
     static audio_source_t inputSourceNameToEnum(const char *name);
 
-    static const char *kStreamNames[AUDIO_STREAM_CNT+1]; //+1 required as streams start from -1
+    static const char *kStreamNames[AUDIO_STREAM_PUBLIC_CNT+1]; //+1 required as streams start from -1
     audio_stream_type_t streamNameToEnum(const char *name);
 
     // Parse audio_effects.conf