arm: dts: rockchip: rk3066a-u-boot: add gpio-ranges

The gpio node names are made generic, but without
gpio bank ID. Add gpio-ranges to rk3066a-u-boot.dtsi
for now till a better method is found.
Disable gpio6 as the driver gives an error code
on return as status.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

arch/arm/dts/rk3066a-u-boot.dtsi

@@ -2,3 +2,28 @@
 
 #include "rockchip-u-boot.dtsi"
 #include "rk3xxx-u-boot.dtsi"
+
+&gpio0 {
+	gpio-ranges = <&pinctrl 0 0 32>;
+};
+
+&gpio1 {
+	gpio-ranges = <&pinctrl 0 32 32>;
+};
+
+&gpio2 {
+	gpio-ranges = <&pinctrl 0 64 32>;
+};
+
+&gpio3 {
+	gpio-ranges = <&pinctrl 0 96 32>;
+};
+
+&gpio4 {
+	gpio-ranges = <&pinctrl 0 128 32>;
+};
+
+&gpio6 {
+	status = "disabled";
+};
+