intel-soc-ctucanfd

The target board support is tested and targets exactly DE0-Nano-SoC Terasic board.
It uses Cyclone V 5CSEMA4U23C6 chub but the chip can require different setup
on other board. So be more specific with directory name.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>