15 inch lvds board add gpio extender

board/GfA/Display001/BUILD

@@ -1 +1 @@
-459
+460

board/GfA/Display001/DTS_4.4/Display001_15.dts

@@ -210,6 +210,14 @@
                 compatible = "microchip,mcp7940x";
                 reg = <0x6f>;
                 };
+
+	pca953x: gpio@70 {
+		compatible = "nxp,pca9538";
+		reg = <0x70>;
+                pinctrl-0 = <&edt_ft5x06_pins>;
+                interrupt-parent = <&gpio2>;
+                interrupts = <1 0>;
+	};
 };