can/esd_usb: Add an entry to the MAINTAINERS file

As suggested by Marc, I added an entry for ESD CAN/USB Drivers
to the MAINTAINERS file

Link: https://lore.kernel.org/all/20220624190517.2299701-3-frank.jungclaus@esd.euSigned-off-by: Frank Jungclaus <frank.jungclaus@esd.eu>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

MAINTAINERS

@@ -7406,6 +7406,13 @@ S:	Maintained
 F:	include/linux/errseq.h
 F:	lib/errseq.c
 
+ESD CAN/USB DRIVERS
+M:	Frank Jungclaus <frank.jungclaus@esd.eu>
+R:	socketcan@esd.eu
+L:	linux-can@vger.kernel.org
+S:	Maintained
+F:	drivers/net/can/usb/esd_usb.c
+
 ET131X NETWORK DRIVER
 M:	Mark Einon <mark.einon@gmail.com>
 S:	Odd Fixes