USB: add support for SuperH OHCI

add support for SuperH OHCI.

supported CPU are:
 - SH7720
 - SH7721
 - SH7763

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 8d48d97..755823c 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -42,6 +42,10 @@
 	default y if PPC_MPC52xx
 	# MIPS:
 	default y if SOC_AU1X00
+	# SH:
+	default y if CPU_SUBTYPE_SH7720
+	default y if CPU_SUBTYPE_SH7721
+	default y if CPU_SUBTYPE_SH7763
 	# more:
 	default PCI