usb: renesas_usbhs: tidyup original usbhsx_for_each_xxx macro

Current usbhsx_for_each_xxx macro will read out-of-array's
memory after last loop operation.
It was not good C language operation, and the binary which was
compiled by (at least) gcc 4.8.1 is broken
This patch tidyup these issues

Reported-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Reviewed-by: Takashi Yoshii <takashi.yoshii.zj@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>