ARM: dts: armada-xp: enable L2 cache parity and ecc on db-xc3-24g4xg

Enable L2 cache parity and ECC on the db-xc3-24g4xg board so that cache
operations are protected and errors can be flagged to the EDAC
subsystem.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm/boot/dts/armada-xp-db-xc3-24g4xg.dts

@@ -33,6 +33,11 @@ memory {
 	};
 };
 
+&L2 {
+	arm,parity-enable;
+	marvell,ecc-enable;
+};
+
 &devbus_bootcs {
 	status = "okay";