Add API:mbtk_get_modem_version from v2.

Change-Id: I5df09ddfaf0b7d55822e1b0b559b014a36bfdc48
diff --git a/mbtk/libmbtk_lib/ril/inc/mbtk_ril.h b/mbtk/libmbtk_lib/ril/inc/mbtk_ril.h
index d4664d9..3ad1dd4 100755
--- a/mbtk/libmbtk_lib/ril/inc/mbtk_ril.h
+++ b/mbtk/libmbtk_lib/ril/inc/mbtk_ril.h
@@ -57,7 +57,7 @@
     RIL_MSG_ID_DEV_MODEM,
     // <uint8>
     RIL_MSG_ID_DEV_POWERIND,
-
+    RIL_MSG_ID_DEV_MD_VERSION_REQ,
     RIL_MSG_ID_DEV_END,
 
     // Sim Information