usb: misc: onboard_hub: use pointer consistently in the probe function

Commit 14485de4 ("usb: Use device_get_match_data()") overlooked the
already existing pointer to pdev->dev 'dev'.

Use the existing pointer 'dev' in device_get_match_data() to keep code
consistency.

Acked-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Javier Carrasco <javier.carrasco@wolfvision.net>
Link: https://lore.kernel.org/r/20240305-onboard_xvf3500-v7-1-ad3fb50e593b@wolfvision.net


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