arm64: marvell: dts: enable the crypto engine on the Armada 7040 DB

Enable the cryptographic engine available in the CP110 master on the
Armada 7040 DB.
Signed-off-by: NAntoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm64/boot/dts/marvell/armada-7040-db.dts

@@ -185,3 +185,7 @@
 	phy = <&phy1>;
 	phy-mode = "rgmii-id";
 };
+
+&cpm_crypto {
+	status = "okay";
+};