dt-bindings: watchdog: sama5d4_wdt: add microchip,sam9x60-wdt compatible

The Atmel sama5d4_wdt needs to be compatible with microchip,sam9x60-wdt
The sama5d4_wdt driver is updated to work with both hardware blocks
(sama5d4/sama5d2 and sam9x60 based blocks)

Signed-off-by: Eugen Hristev <[email protected]>
Acked-by: Rob Herring <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>

Author: ehristev

Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt

@@ -1,7 +1,7 @@
 * Atmel SAMA5D4 Watchdog Timer (WDT) Controller
 
 Required properties:
-- compatible: "atmel,sama5d4-wdt"
+- compatible: "atmel,sama5d4-wdt" or "microchip,sam9x60-wdt"
 - reg: base physical address and length of memory mapped region.
 
 Optional properties: