usb: gadget: tegra-xudc: Use dev_err_probe()

Rather than testing if the error code is -EPROBE_DEFER before printing
an error message, use dev_err_probe() instead to simplify the code.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20210519163553.212682-2-jonathanh@nvidia.com


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