(mail@janderson.ca): remove ieee80211_ibss_merge's TSFT argument.
Do the TSFT comparison in the drivers (ath, atw). Remove a lot of
extraneous debug statements from ieee80211_ibss_merge.
Set the ieee80211_node's state to IEEE80211_STA_BSS after it's been
copied to the ic_bss, not before.
In struct ieee80211_node, make the ni_tstamp field a union of a
uint64_t and the 8 TSF octets so that it's easier to compare a
neighbor's TSF with the local TSF.
Log IBSS merges (Greg Troxel's suggestion). Also log IBSS creation.
These are rare and important events that deserve to be logged.
5dc6377838