USB: r8a66597: Fix failure in change of status

In the change by 749da5f8

,
The change in the status when the USB device is connected is wrong.
Therefore, the device is not recognized.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
CC: Paul Mundt" <lethal@linux-sh.org>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>