phy: rockchip-inno-usb2: Prevent incorrect error on probe

If a phy supply is designated but isn't available at probe time, an
EPROBE_DEFER is returned. Use dev_err_probe to prevent this from
incorrectly printing during boot.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20220625212711.558495-1-pgwipeout@gmail.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>