Required properties:
-- compatible : should be either "allwinner,sun4i-a10-wdt" or
- "allwinner,sun6i-a31-wdt"
+- compatible : should be one of
+ "allwinner,sun4i-a10-wdt"
+ "allwinner,sun6i-a31-wdt"
+ "allwinner,sun50i-a64-wdt","allwinner,sun6i-a31-wdt"
- reg : Specifies base physical address and size of the registers.
Optional properties: