The MCV SoM has DDR3-1600 DRAMs on it, update the DRAM speed
to 400MHz to make use of these DRAMs completely.
Signed-off-by: Marek Vasut <marex@denx.de>
Add support for DENX MCV SoM, which is CycloneV based and the
associated DENX MCVEVK baseboard. The board can boot from eMMC.
Ethernet and USB is supported.
Signed-off-by: Marek Vasut <marex@denx.de>