dt-binding: can: mcp25xxfd: documentation fixes

Apply following fixes:
- Use 'interrupts'. (interrupts-extended will automagically be supported
  by the tools)
- *-supply is always a single item. So, drop maxItems=1
- add "additionalProperties: false" flag to detect unneeded properties.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20200923125301.27200-1-o.rempel@pengutronix.de
Reported-by: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Fixes: 1b5a78e69c ("dt-binding: can: mcp25xxfd: document device tree bindings")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

Documentation/devicetree/bindings/net/can/microchip,mcp25xxfd.yaml

@@ -24,7 +24,7 @@ properties:
   reg:
     maxItems: 1
 
-  interrupts-extended:
+  interrupts:
     maxItems: 1
 
   clocks:
@@ -32,11 +32,9 @@ properties:
 
   vdd-supply:
     description: Regulator that powers the CAN controller.
-    maxItems: 1
 
   xceiver-supply:
     description: Regulator that powers the CAN transceiver.
-    maxItems: 1
 
   microchip,rx-int-gpios:
     description:
@@ -52,9 +50,11 @@ properties:
 required:
   - compatible
   - reg
-  - interrupts-extended
+  - interrupts
   - clocks
 
+additionalProperties: false
+
 examples:
   - |
     #include <dt-bindings/gpio/gpio.h>