[PATCH] bcm43xx: iw_priv_args names should be <16 characters

The room for the names in bcm43xx_priv_wx_args[] are IFNAMSIZ long and
IFNAMSIZ is defined as 16, so the names in bcm43xx_priv_wx_args should
be 15 characters (16 including the trailing \0). This patch fixes that
for the "set_shortpreambl", "get_shortpreambl", "set_swencryption", and
"get_swencryption" private calls. Patch is against 2.6.17-rc1.

Signed-off-by: Erik Mouw <erik@harddisk-recovery.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>