arm64: dts: marvell: 98dx25xx: use correct property for i2c gpios

Use the correct names for scl-gpios and sda-gpios so that the generic
i2c recovery code will find them. While we're here set the
GPIO_OPEN_DRAIN flag on the gpios.

Fixes: b795fadf ("arm64: dts: marvell: Add Armada 98DX2530 SoC and RD-AC5X board")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm64/boot/dts/marvell/ac5-98dx25xx.dtsi

@@ -147,8 +147,8 @@ i2c0: i2c@11000{
 				pinctrl-names = "default", "gpio";
 				pinctrl-0 = <&i2c0_pins>;
 				pinctrl-1 = <&i2c0_gpio>;
-				scl_gpio = <&gpio0 26 GPIO_ACTIVE_HIGH>;
-				sda_gpio = <&gpio0 27 GPIO_ACTIVE_HIGH>;
+				scl-gpios = <&gpio0 26 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+				sda-gpios = <&gpio0 27 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 				status = "disabled";
 			};
 
@@ -166,8 +166,8 @@ i2c1: i2c@11100{
 				pinctrl-names = "default", "gpio";
 				pinctrl-0 = <&i2c1_pins>;
 				pinctrl-1 = <&i2c1_gpio>;
-				scl_gpio = <&gpio0 20 GPIO_ACTIVE_HIGH>;
-				sda_gpio = <&gpio0 21 GPIO_ACTIVE_HIGH>;
+				scl-gpios = <&gpio0 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+				sda-gpios = <&gpio0 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 				status = "disabled";
 			};