lirbem5-evk: Use mainline driver for touch screen controller

We need to mark the GPIO pins as active high since other wise the reset
sequence is inverted.

Using the mainline driver gives us the right scaling.

Closes: #23
Signed-off-by: Guido Günther <guido.gunther@puri.sm>

arch/arm64/boot/dts/freescale/librem5-evk.dtsi

@@ -955,14 +955,16 @@
 	};
 
         goodix_ts@5d {
-                compatible = "goodix,gt5688", "goodix,gt1x";
+                compatible = "goodix,gt5688";
                 pinctrl-names = "default";
                 pinctrl-0 = <&pinctrl_goodix_ts>;
                 reg = <0x5d>;
                 interrupt-parent = <&gpio3>;
-                interrupts = <0  IRQ_TYPE_LEVEL_LOW>;
-                goodix,rst-gpio = <&gpio1 5 GPIO_ACTIVE_LOW>;
-                goodix,irq-gpio = <&gpio3 0 GPIO_ACTIVE_LOW>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+		irq-gpios = <&gpio3 0 GPIO_ACTIVE_HIGH>;
+		touchscreen-size-x = <720>;
+		touchscreen-size-y = <1440>;
         };
 
 	sgtl5000: sgtl5000@a {