[SystemInfo] add system_info_cellular_network_ivi.cc to fit ivi system

Follow  system_info_sim_ivi.cc, add system_info_cellular_network_ivi.cc to fit ivi system. Also fix the lac and cellId attribute error value.

BUG=XWALK-2362
We can merge them together:
```
if (g_strcmp0(key, "MobileCountryCode") == 0 ||
    g_strcmp0(key, "MobileNetworkCode") == 0 ||
    g_strcmp0(key, "CellId") == 0 ||
    ...
 val = g_variant_get_string(var_val, NULL);
 mnc_ = val ? strtoul(val, NULL, 0) : 0;
```