Add cell get/set API for V2.

Change-Id: I7a001cd0f091a199ef0f7583becead01c38e1777
diff --git a/mbtk/libmbtk_ril_v2/inc/mbtk_ril.h b/mbtk/libmbtk_ril_v2/inc/mbtk_ril.h
index 9303e26..e32b1dd 100755
--- a/mbtk/libmbtk_ril_v2/inc/mbtk_ril.h
+++ b/mbtk/libmbtk_ril_v2/inc/mbtk_ril.h
@@ -300,6 +300,15 @@
     MBTK_LTE_EXT_BAND_69 = 16
 } mbtk_lte_ext_band_enum;
 
+typedef struct
+{
+    uint8 type; // 0: GSM 1: UMTS 2: LTE
+    bool running;
+
+    int cell_num;
+    mbtk_cell_info_t cell[CELL_NUM_MAX];
+} mbtK_cell_pack_info_t;
+
 #ifdef __cplusplus
 extern "C" {
 #endif