dt-bindings: display/panel: Add KOE tx14d24vm1bpa display description

Kaohsiung Opto-Electronics Inc. 5.7" QVGA (320 x 240) TFT LCD panel

Required properties:

- compatible: should be "koe,tx14d24vm1bpa"

- backlight: phandle of the backlight device attached to the panel

- power-supply: single regulator to provide the supply voltage

Required nodes:

- port: Parallel port mapping to connect this display

This panel needs single power supply voltage. Its backlight is conntrolled

via PWM signal.

Example:

--------

Example device-tree definition when connected to iMX53 based board

	lcd_panel: lcd-panel {

		compatible = "koe,tx14d24vm1bpa";

		backlight = <&backlight_lcd>;

		power-supply = <&reg_3v3>;

		port {

			lcd_panel_in: endpoint {

				remote-endpoint = <&lcd_display_out>;

			};

		};

	};

Then one needs to extend the dispX node:

	lcd_display: disp1 {

		port@1 {

			reg = <1>;

			lcd_display_out: endpoint {

				remote-endpoint = <&lcd_panel_in>;

			};

		};

	};