netfilter: xt_socket: missing ifdef CONFIG_IP6_NF_IPTABLES dependency

netfilter: xt_socket: missing ifdef CONFIG_IP6_NF_IPTABLES dependency

Origin: https://git.kernel.org/linus/2874b7911132f6975e668f6849c8ac93bc4e1f35

nf_defrag_ipv6_disable() requires CONFIG_IP6_NF_IPTABLES.

Fixes: 75063c9294fb ("netfilter: xt_socket: fix a typo in socket_mt_destroy()")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Eric Dumazet<edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name netfilter-xt_socket-missing-ifdef-CONFIG_IP6_NF_IPTA.patch