LinuxKPI: 802.11: extend ieee80211_key_seq and WLAN_KEY_LEN_* defines
For iwlwifi(4) d3.c we need another struct in struct ieee80211_key_seq
and related WLAN_KEY_LEN_* defines in.
MFC after: 3 days
Reviewed by: cc, emaste
Differential Revision: https://reviews.freebsd.org/D43646