dt-bindings: reset: Add lan966x support

This patch extends the existing file microchip,rst.yaml to support
also the lan966x. For this is added only a new compatible string.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20211018091522.1113510-2-horatiu.vultur@microchip.comSigned-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Documentation/devicetree/bindings/reset/microchip,rst.yaml

@@ -20,7 +20,9 @@ properties:
     pattern: "^reset-controller@[0-9a-f]+$"
 
   compatible:
-    const: microchip,sparx5-switch-reset
+    enum:
+      - microchip,sparx5-switch-reset
+      - microchip,lan966x-switch-reset
 
   reg:
     items: