media: dt-bindings: media: mt9m111: adapt documentation to be more clear

Replace the vague binding by a more verbose. Remove the remote property
from the example since the driver don't support such a property. Also
remove the bus-width property from the endpoint since the driver don't
take care of it.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

Documentation/devicetree/bindings/media/i2c/mt9m111.txt

@@ -9,8 +9,10 @@ Required Properties:
 - clocks: reference to the master clock.
 - clock-names: shall be "mclk".
 
-For further reading on port node refer to
-Documentation/devicetree/bindings/media/video-interfaces.txt.
+The device node must contain one 'port' child node with one 'endpoint' child
+sub-node for its digital output video port, in accordance with the video
+interface bindings defined in:
+Documentation/devicetree/bindings/media/video-interfaces.txt
 
 Example:
 
@@ -21,10 +23,8 @@ Example:
 			clocks = <&mclk>;
 			clock-names = "mclk";
 
-			remote = <&pxa_camera>;
 			port {
 				mt9m111_1: endpoint {
-					bus-width = <8>;
 					remote-endpoint = <&pxa_camera>;
 				};
 			};