ipw2x00: Use IE definitions from linux/ieee80211.h

Use IE definitions from linux/ieee80211.h and drop the appropriate enum
from ipw2x00/ieee80211.h

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --cc drivers/net/wireless/ipw2x00/ieee80211.h
Simple merge

diff --cc drivers/net/wireless/ipw2x00/libipw_rx.c
Simple merge