usb: renesas_usbhs: fix the sequence in xfer_work()

commit 9b53d9af7aac09cf249d72bfbf15f08e47c4f7fe upstream.

This patch fixes the setup sequence in xfer_work(). Otherwise,
sometimes a usb transaction will get stuck.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>