Basic DDMS thread support.

DDMS can now see our running threads...

Change-Id: I42d2fce4db9eb846fa0b4aac46ca6bb3443a6c9f
diff --git a/src/debugger.h b/src/debugger.h
index 6eabf33..111282c 100644
--- a/src/debugger.h
+++ b/src/debugger.h
@@ -227,6 +227,7 @@
   /*
    * DDM support.
    */
+  static void DdmSetThreadNotification(bool enable);
   static bool DdmHandlePacket(const uint8_t* buf, int dataLen, uint8_t** pReplyBuf, int* pReplyLen);
   static void DdmConnected();
   static void DdmDisconnected();