ARM: dts: socfpga: Add new MCVEVK manufacturer compat

The board is now manufactured by Aries Embedded GmbH, update compat string.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>