arm: mx6: add support for Compulab cm-fx6 CoM

Add initial support for Compulab CM-FX6 CoM.
Support includes MMC, SPI flash, and SPL with dynamic DRAM detection.

Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
diff --git a/board/compulab/cm_fx6/MAINTAINERS b/board/compulab/cm_fx6/MAINTAINERS
new file mode 100644
index 0000000..5b2623a
--- /dev/null
+++ b/board/compulab/cm_fx6/MAINTAINERS
@@ -0,0 +1,6 @@
+CM_FX6 BOARD
+M:	Nikita Kiryanov <nikita@compulab.co.il>
+S:	Maintained
+F:	board/compulab/cm_fx6/
+F:	include/configs/cm_fx6.h
+F:	configs/cm_fx6_defconfig