arm64: dts: Add BRCM IPROC NAND DT node for NS2

The NAND controller on NS2 SoC is compatible with existing
BRCM IPROC NAND driver so let's enable it in NS2 DT and
NS2 SVK DT.

This patch also fixes use of node labels in ns2-svk.dts.

Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Reviewed-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
diff --git a/arch/arm64/boot/dts/broadcom/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
index e5950d5..6bb3d4d 100644
--- a/arch/arm64/boot/dts/broadcom/ns2-svk.dts
+++ b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
@@ -50,18 +50,28 @@
 		device_type = "memory";
 		reg = <0x000000000 0x80000000 0x00000000 0x40000000>;
 	};
+};
 
-	soc: soc {
-		i2c0: i2c@66080000 {
-			status = "ok";
-		};
+&i2c0 {
+	status = "ok";
+};
 
-		i2c1: i2c@660b0000 {
-			status = "ok";
-		};
+&i2c1 {
+	status = "ok";
+};
 
-		uart3: serial@66130000 {
-			status = "ok";
-		};
+&uart3 {
+	status = "ok";
+};
+
+&nand {
+	nandcs@0 {
+		compatible = "brcm,nandcs";
+		reg = <0>;
+		nand-ecc-mode = "hw";
+		nand-ecc-strength = <8>;
+		nand-ecc-step-size = <512>;
+		#address-cells = <1>;
+		#size-cells = <1>;
 	};
 };