* use seperate defconfig, because of option changed from 2.6.39 to 3.10
* use python magic to switch between linux and linux-sysmocom
* add sysmocom-bsc to compatible machines for linux-sysmocom
* add new confiugration parameters for syslinux
This sanity check is included in the used bbclass directly and to
support both Edison and master we will need to remove the custom
python code due a change in indention in the python code.