audiopolicy: Add AUDIO_OUTPUT_FLAG_TTS to flags enum table

Without an entry in sOutputFlagNameToEnumTable, a profile with
specific output flag in the audio_policy.conf will not be
detected by AudioPolicyManager.

Change-Id: Id242e6819aab1a67d72c564f3cc39af3de8e1ef7
diff --git a/services/audiopolicy/common/managerdefinitions/include/ConfigParsingUtils.h b/services/audiopolicy/common/managerdefinitions/include/ConfigParsingUtils.h
index 0b08430..a39006e 100644
--- a/services/audiopolicy/common/managerdefinitions/include/ConfigParsingUtils.h
+++ b/services/audiopolicy/common/managerdefinitions/include/ConfigParsingUtils.h
@@ -155,6 +155,7 @@
     STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD),
     STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING),
     STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC),
+    STRING_TO_ENUM(AUDIO_OUTPUT_FLAG_TTS),
 };
 
 const StringToEnum sInputFlagNameToEnumTable[] = {