watchdog: MAX63XX_WATCHDOG does not depend on ARM

Remove the ARM Kconfig dependency since the Maxim MAX63xx devices are
architecture independent.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

drivers/watchdog/Kconfig

@@ -408,7 +408,7 @@ config TS72XX_WATCHDOG
 
 config MAX63XX_WATCHDOG
 	tristate "Max63xx watchdog"
-	depends on ARM && HAS_IOMEM
+	depends on HAS_IOMEM
 	select WATCHDOG_CORE
 	help
 	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.