can: gs_usb: gs_usb_probe(): align block comment

Indent block comment so that it aligns the * on each line.

Link: https://lore.kernel.org/all/20230718-gs_usb-cleanups-v1-2-c3b9154ec605@pengutronix.deSigned-off-by: Marc Kleine-Budde <mkl@pengutronix.de>