[PATCH] b44: fix suspend/resume

Fix suspend/resume on b44 by freeing/reacquiring irq.  Otherwise it hangs
on resume.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>