Add AIDL files for the TTS service and the associated callback service (to signal synthesis completion).
diff --git a/Android.mk b/Android.mk
index 566459b..fe1a4c5 100644
--- a/Android.mk
+++ b/Android.mk
@@ -147,6 +147,8 @@
telephony/java/com/android/internal/telephony/ITelephonyRegistry.aidl \
telephony/java/com/android/internal/telephony/IIccPhoneBook.aidl \
telephony/java/com/android/internal/telephony/ISms.aidl \
+ tts/java/android/tts/ITtsCallback.aidl \
+ tts/java/android/tts/ITts.aidl \
wifi/java/android/net/wifi/IWifiManager.aidl \
telephony/java/com/android/internal/telephony/IExtendedNetworkService.aidl