mac80211: convert to cfg80211 IBSS API

This converts mac80211 to the new cfg80211 IBSS API, the
wext handling functions are called where appropriate.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --cc net/mac80211/cfg.c
Simple merge

diff --cc net/mac80211/ibss.c
Simple merge

diff --cc net/mac80211/ieee80211_i.h
Simple merge

diff --cc net/mac80211/iface.c
Simple merge

diff --cc net/mac80211/main.c
Simple merge

diff --cc net/mac80211/scan.c
Simple merge

diff --cc net/mac80211/sta_info.c
Simple merge

diff --cc net/mac80211/sta_info.h
Simple merge

diff --cc net/mac80211/tx.c
Simple merge

diff --cc net/mac80211/wext.c
Simple merge