add mbtk_fplmn_set/get to modify fplmn list for GSW

Change-Id: I2b81ce7ca355a0acfd85f87082511bcdc0cb9c91
diff --git a/mbtk/libmbtk_lib/ril/v1/mbtk_info.c b/mbtk/libmbtk_lib/ril/v1/mbtk_info.c
index 78e289e..6a692c7 100755
--- a/mbtk/libmbtk_lib/ril/v1/mbtk_info.c
+++ b/mbtk/libmbtk_lib/ril/v1/mbtk_info.c
@@ -302,6 +302,10 @@
         case MBTK_INFO_ID_NET_IMS_REQ:
         case MBTK_INFO_ID_NET_IMS_RSP:
             return "IMS";
+        //fplmn
+        case MBTK_INFO_ID_NET_FPLMN_REQ:
+        case MBTK_INFO_ID_NET_FPLMN_RSP:
+            return "FPLMN";
         // Call Information
         case MBTK_INFO_ID_CALL_STATE_REQ:
         case MBTK_INFO_ID_CALL_STATE_RSP: