MFC r206763-206767:

MFC r206763-206767:

r206763:
Fix comment about ipw_assoc and remove some whitespaces; no functional
changes.

r206764:
Pass correct RSSI to ieee80211_input*().

r206765:
- Make ipw usable again by moving directly into ASSOC state.
- No need to manually switch to RUN state, assoc response takes care
  of that.

r206766:
Use iv_appie_wpa, with this commit WPA works again.

r206767:
Remove IPW_LOCK_DECL and fix various LORs.

Approved by:	rpaulo (mentor)

git-svn-id: svn://svn.freebsd.org/base/stable/8@207440 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f