usb: renesas_usbhs: fixup usbhsg_for_each_uep 1st pos

1st pos of __usbhsg_for_each_uep() was wrong.
Expected uep were ep1, ep2, ep3...
but each uep were ep0, ep2, ep3 ...
This patch modify it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>