usb: ehci-hcd: Add support for SuperH EHCI.

This adds a trivial stub for supporting EHCI mode of the on-chip
SH USB host controllers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 502a7e6..02ffbea 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1166,6 +1166,11 @@
 #define PLATFORM_DRIVER		ehci_mxc_driver
 #endif
 
+#ifdef CONFIG_CPU_SUBTYPE_SH7786
+#include "ehci-sh.c"
+#define PLATFORM_DRIVER		ehci_hcd_sh_driver
+#endif
+
 #ifdef CONFIG_SOC_AU1200
 #include "ehci-au1xxx.c"
 #define	PLATFORM_DRIVER		ehci_hcd_au1xxx_driver