Documentation/devicetree/bindings/net/can/ fix a typo

Corrected the word compatbile to compatible in the file atmel-can.txt.
Signed-off-by: Stefan Huber <steffhip@gmail.com>
Signed-off-by: Matthias Schid <aircrach115@gmail.com>
Signed-off-by: Simon Puels <simon.puels@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

Documentation/devicetree/bindings/net/can/atmel-can.txt

@@ -8,7 +8,7 @@ Required properties:
 Example:
 
 	can0: can@f000c000 {
-		compatbile = "atmel,at91sam9x5-can";
+		compatible = "atmel,at91sam9x5-can";
 		reg = <0xf000c000 0x300>;
 		interrupts = <40 4 5>
 	};