plat: marvell: Add support for Armada-37xx SoC platform

Add supprot for Marvell platforms based on Armada-37xx SoC.
This includes support for the official Armada-3720 modular
development board and EspressoBin community board.
The Armada-37xx SoC contains dual Cortex-A53 Application CPU,
single secure CPU (Cortex-M3) and the following interfaces:
- SATA 3.0
- USB 3.0 and USB 2.0
- PCIe
- SDIO (supports boot from eMMC)
- SPI
- UART
- I2c
- Gigabit Ethernet

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
diff --git a/plat/marvell/a3700/common/include/dram_win.h b/plat/marvell/a3700/common/include/dram_win.h
new file mode 100644
index 0000000..7ff20be
--- /dev/null
+++ b/plat/marvell/a3700/common/include/dram_win.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:	BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#ifndef _DRAM_WIN_H_
+#define _DRAM_WIN_H_
+
+#include <bl_common.h>
+#include <io_addr_dec.h>
+
+void dram_win_map_build(struct dram_win_map *win_map);
+void cpu_wins_init(void);
+
+#endif /* _DRAM_WIN_H_ */
+