ARM: dts: rmobile: Synchronize Gen2 DTs with Linux 5.6.2

Synchronize R-Car Gen2 device trees with Linux 5.6.2,
commit 9fbe5c87eaa9b72db08425c52c373eb5f6537a0a .

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/arm/dts/r8a7791-porter.dts b/arch/arm/dts/r8a7791-porter.dts
index fefdf82..f9ece7a 100644
--- a/arch/arm/dts/r8a7791-porter.dts
+++ b/arch/arm/dts/r8a7791-porter.dts
@@ -31,7 +31,7 @@
 	};
 
 	chosen {
-		bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp";
+		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
 		stdout-path = "serial0:115200n8";
 	};
 
@@ -63,8 +63,7 @@
 
 		gpios = <&gpio2 12 GPIO_ACTIVE_HIGH>;
 		gpios-states = <1>;
-		states = <3300000 1
-			  1800000 0>;
+		states = <3300000 1>, <1800000 0>;
 	};
 
 	vcc_sdhi2: regulator-vcc-sdhi2 {
@@ -85,8 +84,7 @@
 
 		gpios = <&gpio2 26 GPIO_ACTIVE_HIGH>;
 		gpios-states = <1>;
-		states = <3300000 1
-			  1800000 0>;
+		states = <3300000 1>, <1800000 0>;
 	};
 
 	hdmi-out {
@@ -228,6 +226,11 @@
 		function = "intc";
 	};
 
+	pmic_irq_pins: pmicirq {
+		groups = "intc_irq2";
+		function = "intc";
+	};
+
 	sdhi0_pins: sd0 {
 		groups = "sdhi0_data4", "sdhi0_ctrl";
 		function = "sdhi0";
@@ -373,6 +376,8 @@
 };
 
 &i2c6 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pmic_irq_pins>;
 	status = "okay";
 	clock-frequency = <100000>;