net: mqtt_sn: udp: use correct get/setsockopt parameters for IPv6

On IPv6, IPPROTO_IPV6 needs to be replaced by IPPROTO_IP and
IP_MULTICAST_TTL by IPV6_MULTICAST_HOPS.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
1 file changed