pcengines/apu1: New board PC Engines APU1

While we cannot recreate exact copies of PC Engines APU1 firmware images,
I shall upstream the vital changes for coreboot from the following tarballs
SAGE has published to meet GPL:

SageBios_PCEngines_APU_sources_for_publishing_20140405_GPL_package.tar.gz
md5sum: ce5f54723e4fe3b63a1a3e35586728d4

pcengines.apu_139_osp.tar.gz
md5sum: af6c8ab3b85d1a5a9fbeb41efa30a1ef

The patch here adds Kconfig, Makefile.inc and devicetree.cb files to
match 2014/04/05 release tarball config.h and static.c files.

Change-Id: Id61270b4d484f712a5c0e780a01fc81f1550b9ad
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8325
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
17 files changed