ARM: shmobile: Remove #gpio-ranges-cells DT property

This property is no longer required by the GPIO binding. Remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7778.dtsi

@@ -96,6 +96,5 @@ gpio4: gpio@ffc44000 {
 	pfc: pfc@fffc0000 {
 		compatible = "renesas,pfc-r8a7778";
 		reg = <0xfffc000 0x118>;
-		#gpio-range-cells = <3>;
 	};
 };

arch/arm/boot/dts/r8a7779.dtsi

@@ -188,7 +188,6 @@ i2c3: i2c@ffc73000 {
 	pfc: pfc@fffc0000 {
 		compatible = "renesas,pfc-r8a7779";
 		reg = <0xfffc0000 0x23c>;
-		#gpio-range-cells = <3>;
 	};
 
 	thermal@ffc48000 {

arch/arm/boot/dts/r8a7790.dtsi

@@ -148,7 +148,6 @@ mmcif1: mmcif@ee220000 {
 	pfc: pfc@e6060000 {
 		compatible = "renesas,pfc-r8a7790";
 		reg = <0 0xe6060000 0 0x250>;
-		#gpio-range-cells = <3>;
 	};
 
 	sdhi0: sdhi@ee100000 {