phy: phy-imx8mq-usb: clean up clock code

use CONFIG_IS_ENABLED for clock enable/disable and change printf's
to dev_err. Additionlly remove the comment that does not make sense.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Marek Vasut <marex@denx.de>
1 file changed