led server for v2

Change-Id: I08244310bd94a42fd736d0acc80ba0a5ac5cef93
diff --git a/mbtk/libmbtk_lib/Makefile b/mbtk/libmbtk_lib/Makefile
index eba855b..abb76bc 100755
--- a/mbtk/libmbtk_lib/Makefile
+++ b/mbtk/libmbtk_lib/Makefile
@@ -79,6 +79,7 @@
 	common/mbtk_version.c \
 	common/mbtk_gpio.c \
 	common/mbtk_adc.c \
+	common/mbtk_led_control.c \
 	common/mbtk_loopbuff.c
 
 # audio