ARM: dts: omap3-gta04: Add touchscreen properties

Gta04 using tcs2007 touchscreen. Add support for that.
Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-gta04.dts

@@ -128,6 +128,16 @@ hmc5843@1e {
 		compatible = "honeywell,hmc5843";
 		reg = <0x1e>;
 	};
+
+	/* touchscreen */
+	tsc2007@48 {
+		compatible = "ti,tsc2007";
+		reg = <0x48>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
+		gpios = <&gpio6 0 GPIO_ACTIVE_LOW>;
+		ti,x-plate-ohms = <600>;
+	};
 };
 
 &i2c3 {