For L2 cache controller node, cache-level property is mandatory. Let's
add it to Armada 370 and Armada XP device tree.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
                                compatible = "marvell,aurora-outer-cache";
                                reg = <0x08000 0x1000>;
                                cache-id-part = <0x100>;
+                               cache-level = <2>;
                                cache-unified;
                                wt-override;
                        };
 
                                compatible = "marvell,aurora-system-cache";
                                reg = <0x08000 0x1000>;
                                cache-id-part = <0x100>;
+                               cache-level = <2>;
                                cache-unified;
                                wt-override;
                        };