Fix code warning.

Change-Id: Ib11fb49f528d3688351ae349d5b4e307c28b3967
diff --git a/mbtk/libmbtk_lib/ril/mbtk_info.c b/mbtk/libmbtk_lib/ril/mbtk_info.c
index 58358ca..78e289e 100755
--- a/mbtk/libmbtk_lib/ril/mbtk_info.c
+++ b/mbtk/libmbtk_lib/ril/mbtk_info.c
@@ -9,7 +9,7 @@
 #include "mbtk_list.h"
 #include "mbtk_utils.h"
 
-static int sock_read(int fd, uint8 *msg, int data_len)
+static int sock_read(int fd, void *msg, int data_len)
 {
     memset(msg, 0, data_len);
     int len = 0;
@@ -51,7 +51,7 @@
     }
 }
 
-static int sock_write(int fd, uint8 *msg, int data_len)
+static int sock_write(int fd, void *msg, int data_len)
 {
     int len = 0;
     int write_len = 0;
@@ -155,12 +155,12 @@
 */
 int str_2_ipv6(const void *ip_str, void *ipv6)
 {
-    const uint8 *ptr = (const uint8*)ip_str;
+    const char *ptr = (const char*)ip_str;
     uint8 *ipv6_ptr = (uint8*)ipv6;
     ipv6_ptr[0] = (uint8)atoi(ptr);
     int i = 1;
     while(i < 16) {
-        ptr = (const uint8*)strstr(ptr, ".");
+        ptr = strstr(ptr, ".");
         if(ptr == NULL)
             return -1;
         ptr++;
@@ -181,8 +181,8 @@
     int i = 0;
     int index = 0;
     while(i < 16) {
-        index += sprintf(ipv6_ptr + index, "%02x%02x", ptr[i], ptr[i + 1]);
-        index += sprintf(ipv6_ptr + index, ":");
+        index += sprintf((char*)ipv6_ptr + index, "%02x%02x", ptr[i], ptr[i + 1]);
+        index += sprintf((char*)ipv6_ptr + index, ":");
         i += 2;
     }