arm64: a37xx: dts: Add pin control nodes to DT

Add pin control nodes for North and South bridges to
Armada-37xx DT
Signed-off-by: NKonstantin Porotchkin <kostap@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Igal Liberman <igall@marvell.com>
Cc: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: NStefan Roese <sr@denx.de>

arch/arm/dts/armada-37xx.dtsi

@@ -193,6 +193,20 @@
 				status = "disabled";
 			};
 
+			pinctl0: pinctl@13830 { /* north bridge */
+				compatible = "marvell,armada-3700-pinctl";
+				bank-name = "armada-3700-nb";
+				reg = <0x13830 0x4>;
+				pin-count = <36>;
+			};
+
+			pinctl1: pinctl@18830 { /* south bridge */
+				compatible = "marvell,armada-3700-pinctl";
+				bank-name = "armada-3700-sb";
+				reg = <0x18830 0x4>;
+				pin-count = <30>;
+			};
+
 			comphy: comphy@18300 {
 				compatible = "marvell,mvebu-comphy", "marvell,comphy-armada-3700";
 				reg = <0x18300 0x28>,