hwmon: (corsair-psu) fix suspend behavior

commit 7656cd21 upstream.

During standby some PSUs turn off the microcontroller. A re-init is
required during resume or the microcontroller stays unresponsive.

Fixes: d115b51e

 ("hwmon: add Corsair PSU HID controller driver")
Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/YLjCJiVtu5zgTabI@monster.powergraphx.local
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>