drm/omap: change "!CONFIG_FB_OMAP2" to "!FB_OMAP2"

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
1 file changed