: Netfilter resync

These patches resync 2.4 with 2.6.

<sj-netfilter:cookinglinux.org>:
o [NETFILTER]: Fix another DECLARE_MUTEX in header file

Pablo Neira:
o [NETFILTER]: Fix DECLARE_MUTEX in header file

Patrick McHardy:
o [NETFILTER]: Fix IP/TCP option logging
o [NETFILTER]: Fix refreshing of overlapping expectations
o [NETFILTER]: Fix ip6tables ESP matching with "-p all"
o [NETFILTER]: Fix cleanup in ipt_recent
o [NETFILTER]: Fix ip_ct_selective_cleanup(), and rename
ip_ct_iterate_cleanup()
o [NETFILTER]: fix return values of ipt_recent checkentry