can: mcp251xfd: mcp251xfd_probe(): use dev_err_probe() to simplify error handling

dev_err_probe() can reduce code size, uniform error handling and record the
defer probe reason etc., use it to simplify the code.

Link: https://lore.kernel.org/r/20210128104644.2982125-9-mkl@pengutronix.de


Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>