powerpc: dts: p2020: Add localbus node

This node is required for NAND and NOR support. Node is taken from the
upstream Linux kernel DTS file.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/powerpc/dts/p2020rdb-pc_36b.dts b/arch/powerpc/dts/p2020rdb-pc_36b.dts
index ecdc022..6f25196 100644
--- a/arch/powerpc/dts/p2020rdb-pc_36b.dts
+++ b/arch/powerpc/dts/p2020rdb-pc_36b.dts
@@ -15,6 +15,10 @@
 	#size-cells = <2>;
 	interrupt-parent = <&mpic>;
 
+	lbc: localbus@fffe05000 {
+		reg = <0xf 0xffe05000 0 0x1000>;
+	};
+
 	soc: soc@fffe00000 {
 		ranges = <0x0 0xf 0xffe00000 0x100000>;
 	};