Add RTP support for ril V1.

Change-Id: Ibaedd44756ad14e01912b4c9db705d312f1ae960
diff --git a/mbtk/Makefile b/mbtk/Makefile
index a68830e..c5926ef 100755
--- a/mbtk/Makefile
+++ b/mbtk/Makefile
@@ -10,12 +10,12 @@
 
 # Build bin file.
 ifeq ($(MBTK_SOURCE_VERSION), 2)
-DIRS += mbtk_rild_v2 mbtk_servicesd_v2 mbtk_sdk_ready_v2 mbtk_rtpd
+DIRS += mbtk_rild_v2 mbtk_servicesd_v2 mbtk_sdk_ready_v2
 else
 DIRS += mbtk_rild mbtk_servicesd mbtk_sdk_ready
 endif
 
-DIRS += aboot-tiny mbtk_adbd mbtk_logd mbtk_utils mbtk_utils_linux mbtk_gnssd
+DIRS += aboot-tiny mbtk_adbd mbtk_logd mbtk_utils mbtk_utils_linux mbtk_gnssd mbtk_rtpd
 
 # Build test file.
 DIRS += test