usb: renesas-xhci: Do not print any log while fw verif success

When drivers are working properly, they should be quiet.

Signed-off-by: Chen Xingdi <chenxingdi@huawei.com>
Link: https://lore.kernel.org/r/20220727031146.19345-1-chenxingdi@huawei.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>