siemens/nc_fpga: Add driver for Siemens NC FPGA

Add driver code to initialize Siemens NC FPGA as PCI device.
Beside some glue logic it contains a FAN controller and
temperature monitor.

Change-Id: I2cb722a60081028ee5a8251f51125f12ed38d824
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/15543
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
4 files changed