ARM: dts: s5pv210: replace deprecated "gpios" i2c-gpio property in Aquila

"gpios" property is deprecated.  Update the Aquila DTS to fix
dtbs_checks warnings like:

  i2c-pmic: 'sda-gpios' is a required property
  i2c-pmic: 'scl-gpios' is a required property

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200907161141.31034-23-krzk@kernel.org

arch/arm/boot/dts/s5pv210-aquila.dts

@@ -65,8 +65,8 @@
 
 	i2c_pmic: i2c-pmic {
 		compatible = "i2c-gpio";
-		gpios = <&gpj4 0 GPIO_ACTIVE_HIGH>, /* sda */
-			<&gpj4 3 GPIO_ACTIVE_HIGH>; /* scl */
+		sda-gpios = <&gpj4 0 GPIO_ACTIVE_HIGH>;
+		scl-gpios = <&gpj4 3 GPIO_ACTIVE_HIGH>;
 		i2c-gpio,delay-us = <2>;        /* ~100 kHz */
 		#address-cells = <1>;
 		#size-cells = <0>;