[PATCH] drivers/net/wireless/ipw2100.c: make ipw2100_wpa_assoc_frame() static

This patch makes the needlessly global ipw2100_wpa_assoc_frame() static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>