drivers/video/macmodes.c:mac_find_mode() mustn't be __devinit

If it's EXPORT_SYMBOL'ed it can't be __devinit.

Reported by Mikael Pettersson.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>