arm: socfpga: Enable DM and DM_SPI

arm: socfpga: Enable DM and DM_SPI

Enable DM and DM_SPI support for both Cyclone 5 and Arria 5 boards,
since they use drivers which require those.

Signed-off-by: Marek Vasut <[email protected]>
Cc: Chin Liang See <[email protected]>
Cc: Dinh Nguyen <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Acked-by: Simon Glass <[email protected]>
Acked-by: Stefan Roese <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Vince Bridgers <[email protected]>