[SystemInfo] add system_info_network_ivi.cc to fit tizen ivi/common.

Follow system_info_sim_ivi.cc(#369), add system_info_network_ivi.cc to fit ivi/common system.

BUG=XWALK-2361
```
if (g_strcmp0(key, "Technology") != 0)
  continue;

const char* val = g_variant_get_string(var_val, NULL);
...
```