dt-bindings: exynos5433-decon: remove i80-if-timings property

	 size-cells must 1 and 0, respectively.

- port: contains an endpoint node which is connected to the endpoint in the mic

	node. The reg value muset be 0.

- i80-if-timings: specify whether the panel which is connected to decon uses

		  i80 lcd interface or mipi video interface. This node contains

		  no timing information as that of fimd does. Because there is

		  no register in decon to specify i80 interface timing value,

		  it is not needed, but make it remain to use same kind of node

		  in fimd and exynos7 decon.

Example:

SoC specific DT entry:

		};

	};

};

Board specific DT entry:

&decon {

	i80-if-timings {

	};

};