Merge branch 'can-etas_es58x-cleanups-on-struct-es58x_device'

Vincent Mailhol says:

====================
This series contains two clean up patches toward struct es58x_device
of the CAN etas_es58x driver. The first one removes the field
rx_max_packet_size which value can actually be retrieved from the
helper function usb_maxpacket(). The second one fixes the signedness
of the TX and RX pipes.

No functional changes.
====================

Link: https://lore.kernel.org/all/20220611162037.1507-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>