netfilter: Fix typo in NF_CONNTRACK Kconfig option description
The NF_CONNTRACK Kconfig option description makes an incorrect reference
to the "meta" expression where the "ct" expression would be correct.This
patch fixes the respective typographical error.
Fixes: d497c6352736 ("netfilter: add help information to new nf_tables Kconfig options") Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>