watchdog: npcm: Add support for WPCM450

Add a compatible string for WPCM450, which has essentially the same
watchdog mechanism as NPCM750.

Signed-off-by: Jonathan Neuschäfer <[e-mail]>
Acked-by: Guenter Roeck <[e-mail]>
Reviewed-by: Joel Stanley <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Joel Stanley <[e-mail]>

drivers/watchdog/npcm_wdt.c

···
 
 #ifdef CONFIG_OF
 static const struct of_device_id npcm_wdt_match[] = {
+	{.compatible = "nuvoton,wpcm450-wdt"},
 	{.compatible = "nuvoton,npcm750-wdt"},
 	{},
 };