arm: mvebu: Add SolidRun ClearFog Armada 38x initial support

This patch adds basic support for the SolidRun ClearFog Armada 38x based
board to mainline U-Boot. Supported interfaces / devices are:
- DDR3
- UART
- MMC
- Ethernet port 0 (connected to dedicated PHY)
- I2C

The included DT source was taken from Russell King's ftp server:
http://www.home.arm.linux.org.uk/~rmk/clearfog/

With only minor modifications, like the addition of some aliases and the
"u-boot,dm-pre-reloc" property.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Rabeeh Khoury <rabeeh@solid-run.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
diff --git a/board/solidrun/clearfog/MAINTAINERS b/board/solidrun/clearfog/MAINTAINERS
new file mode 100644
index 0000000..298e501
--- /dev/null
+++ b/board/solidrun/clearfog/MAINTAINERS
@@ -0,0 +1,6 @@
+CLEARFOG BOARD
+M:	Stefan Roese <sr@denx.de>
+S:	Maintained
+F:	board/soldrun/clearfog/
+F:	include/configs/clearfog.h
+F:	configs/clearfog_defconfig