arm64: dts: Add device tree for ESPRESSOBin board

Initial DTS file for Marvell ESPRESSOBin comunity board
based on Armada-3720 SoC.
The Marvell ESPRESSOBin is a tiny board made by Globalscale
and available on KickStarter site. It has dual core Armv8
Marvell SoC (Armada-3720) with 512MB/1GB/2GB DDR3 RAM,
mini-PCIe 2.0 slot, single SATA-3 port, USB 2.0 and USB 3.0
interfaces, Gigabit Ethernet switch with 3 ports, micro-SD
socket and two 46-pin GPIO connectors.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Igal Liberman <igall@marvell.com>
Cc: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index a1190ab..5f1df2a 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -71,6 +71,7 @@
 
 dtb-$(CONFIG_ARCH_MVEBU) +=			\
 	armada-3720-db.dtb			\
+	armada-3720-espressobin.dtb		\
 	armada-375-db.dtb			\
 	armada-388-clearfog.dtb			\
 	armada-388-gp.dtb			\