dt-bindings: watchdog: qcom-wdt: document IPQ5018

Document the IPQ5018 watchdog compatible.

Signed-off-by: Robert Marko <robimarko@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230816161455.3310629-1-robimarko@gmail.com


Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>