usb: r8a66597-hcd: fix cannot detect low/full speed device

This controller can control "Transaction Translators", but
the hcd->has_tt is not set.
Since the commit d199c96d
("USB: prevent buggy from crashing the USB stack") has checked it,
the driver could not work the low/full speed device.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/r8a66597-hcd.c

@@ -2517,6 +2517,7 @@ static int __devinit r8a66597_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&r8a66597->child_device);
 
 	hcd->rsrc_start = res->start;
+	hcd->has_tt = 1;
 
 	ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger);
 	if (ret != 0) {