MAINTAINERS: Add support for Xilinx versal watchdog

Added entry for Xilinx versal watchdog driver.

Signed-off-by: Srinivas Neeli <srinivas.neeli@amd.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lkml.kernel.org/r/20230420104231.2243079-5-srinivas.neeli@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

Author: srneeli

MAINTAINERS

@@ -23218,8 +23218,10 @@ M:	Srinivas Neeli <srinivas.neeli@amd.com>
 R:	Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
 R:	Michal Simek <michal.simek@amd.com>
 S:	Maintained
+F:	Documentation/devicetree/bindings/watchdog/xlnx,versal-wwdt.yaml
 F:	Documentation/devicetree/bindings/watchdog/xlnx,xps-timebase-wdt.yaml
 F:	drivers/watchdog/of_xilinx_wdt.c
+F:	drivers/watchdog/xilinx_wwdt.c
 
 XILINX XDMA DRIVER
 M:	Lizhi Hou <lizhi.hou@amd.com>