MAINTAINERS: Add maintainers for ARM/REALTEK ARCHITECTURE

Add James Tai and Yu-Chun Lin as co-maintainers for the ARM/REALTEK
ARCHITECTURE to continue supporting Realtek SoCs.

Additionally, based on the discussion, move Andreas Färber to a
reviewer role and update his email address accordingly.

Link: https://lore.kernel.org/lkml/bbabf0f1-99fa-4822-85c8-df76ce89da01@suse.com/
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: James Tai <james.tai@realtek.com>
Signed-off-by: Yu-Chun Lin <eleanor.lin@realtek.com>
Link: https://lore.kernel.org/r/20260505103955.1010130-2-eleanor.lin@realtek.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: Yu-Chun Lin

MAINTAINERS

@@ -3361,7 +3361,9 @@ F:	drivers/irqchip/irq-rda-intc.c
 F:	drivers/tty/serial/rda-uart.c
 
 ARM/REALTEK ARCHITECTURE
-M:	Andreas Färber <afaerber@suse.de>
+M:	James Tai <james.tai@realtek.com>
+M:	Yu-Chun Lin <eleanor.lin@realtek.com>
+R:	Andreas Färber <afaerber@suse.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 L:	linux-realtek-soc@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained