media: dt-bindings: media: xilinx: fix typo in example

Fix typo s/:/;/

Cc: Rob Herring <[e-mail]>
Cc: Hyun Kwon <[e-mail]>
Signed-off-by: Akinobu Mita <[e-mail]>
Acked-by: Rob Herring <[e-mail]>
Reviewed-by: Laurent Pinchart <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

Documentation/devicetree/bindings/media/xilinx/xlnx,v-tpg.txt

···
 				tpg1_out: endpoint {
 					remote-endpoint = <&switch_in0>;
 				};
-			}:
+			};
 		};
 	};