ARM: dts: mvebu: armada-395: add support for the Armada 395 SoC family

Beside interfaces described in the armada-39x.dtsi, the Armada 395 SoC
family supports: 2 x SATA3 (2 ports in one unit) and the USB3.0

Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>