The files will have the needed fragments to move a .config
file to either a nano or micro kernel .config. This will let us
get rid of the micro_*_defconfig/nano_*_defconfig in the future
and once the sanitychecks are adapted leaving us with a single
fragment file per platform and thus making it easier to maintain.
Change-Id: If23b32cc259de498816ddc8be15cdd6e0014106a
Signed-off-by: Anas Nashif <anas.nashif@intel.com>