This commit adds a configuration for the Orange Pi PC board,
<http://www.orangepi.org/orangepipc/

>.

Signed-off-by: Eelco Chaudron <echaudron@xiot.nl>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

[Peter: adjust for _FEX_FILE]
Signed-off-by: Carlo Caione <carlo.caione@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>