[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 system.

BUG=XWALK-2361
@halton  It seems that ````defined(TIZEN_COMMON)````doesn't work. The fail log is 'GDBusConnection' does not name a type. Can you tell me how to define tizen common?