MAINTAINERS: Update the maintainer of StarFive watchdog driver

Samin quits maintaining the StarFive watchdog driver and Ziv joins instead.
Update the maintainer of this driver from Samin to Ziv.

Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240927065032.2773997-1-xingyu.wu@starfivetech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

Author: SFxingyuwu

MAINTAINERS

@@ -22059,7 +22059,7 @@ F:	drivers/char/hw_random/jh7110-trng.c
 
 STARFIVE WATCHDOG DRIVER
 M:	Xingyu Wu <xingyu.wu@starfivetech.com>
-M:	Samin Guo <samin.guo@starfivetech.com>
+M:	Ziv Xu <ziv.xu@starfivetech.com>
 S:	Supported
 F:	Documentation/devicetree/bindings/watchdog/starfive*
 F:	drivers/watchdog/starfive-wdt.c