ARM: mvebu: add crypto related nodes to armada 38x dtsi

Add crypto related nodes in armada-38x.dtsi.

[gregory.clement@free-electrons.com: Fix typo for compatible string
armada38x instead of armada375]

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>