ARM: shmobile: r8a7790: fix "gpio-ranges" props

On R8A7790, GPIO banks 1 and 2 are missing  pins 30 and 31.  Correct the
"gpio-ranges" properties of the corresponding device nodes.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7790.dtsi

@@ -143,7 +143,7 @@ gpio1: gpio@e6051000 {
 		interrupts = <0 5 IRQ_TYPE_LEVEL_HIGH>;
 		#gpio-cells = <2>;
 		gpio-controller;
-		gpio-ranges = <&pfc 0 32 32>;
+		gpio-ranges = <&pfc 0 32 30>;
 		#interrupt-cells = <2>;
 		interrupt-controller;
 		clocks = <&mstp9_clks R8A7790_CLK_GPIO1>;
@@ -156,7 +156,7 @@ gpio2: gpio@e6052000 {
 		interrupts = <0 6 IRQ_TYPE_LEVEL_HIGH>;
 		#gpio-cells = <2>;
 		gpio-controller;
-		gpio-ranges = <&pfc 0 64 32>;
+		gpio-ranges = <&pfc 0 64 30>;
 		#interrupt-cells = <2>;
 		interrupt-controller;
 		clocks = <&mstp9_clks R8A7790_CLK_GPIO2>;