To support openvpn, CONFIG_TUN is required and to support
wireguard vpn, CONFIG_WIREGUARD is required. To support tizen
vpn service, enable those config options.
Change-Id: I17a287c534ed960a4e5f6e48218cac62a7ac29ac Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>