MAINTAINERS: can: xilinx_can: remove Naga Sureshkumar Relli

Mails to naga.sureshkumar.relli@xilinx.com are bouncing due to a mail
loop. Seems Naga Sureshkumar Relli has left the company.

Remove Naga Sureshkumar Relli from the xilinx_can driver.

Cc: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Link: https://lore.kernel.org/all/20240213-xilinx_can-v1-1-79820de803ea@pengutronix.de


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