add support for SuperH OHCI.

supported CPU are:
 - SH7720
 - SH7721
 - SH7763
Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Acked-by: NDavid Brownell <david-b@pacbell.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>