usb: convert r8a66597-hcd to dev_pm_ops

Convert the r8a66597-hcd driver to dev_pm_ops. This makes
the driver a good PM citizen and removes a warning printout.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
1 file changed