gma500: Don't needlessly include version.h in mdfld_dsi_output.h

drivers/gpu/drm/gma500/mdfld_dsi_output.h does not need to
'#include <linux/version.h>' - so don't.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Alan Cox <alan@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>