watchdog: npcm: Modify npcm watchdog kconfig arch parameter

Modify Nuvoton watchdog Kconfig default supported architecture
name to ARCH_NPCM7XX because ARCH_NPCM750 architecture name
is not supported.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

drivers/watchdog/Kconfig

@@ -538,7 +538,7 @@ config COH901327_WATCHDOG
 config NPCM7XX_WATCHDOG
 	bool "Nuvoton NPCM750 watchdog"
 	depends on ARCH_NPCM || COMPILE_TEST
-	default y if ARCH_NPCM750
+	default y if ARCH_NPCM7XX
 	select WATCHDOG_CORE
 	help
 	  Say Y here to include Watchdog timer support for the