pconf: kbuild: the core module is no longer default enabled.

If you are building in-tree you also have to specify how the core
module should be build in PConf.

Signed-off-by: Michel Megens <dev@michelmegens.net>
pconf: kconfig: added two options to support in-tree building.

-l can be used to give a pointer to the linux source tree. This
path will be used by the -C option, which will copy all local include
files into the linux kernel tree.

NB: -C will overwrite any existing files if they overlap.

Signed-off-by: Michel Megens <dev@michelmegens.net>
kbuild: kconfig: added (stubs) to generate Makefiles.

Makefile's should be generateble aswell.

Signed-off-by: Michel Megens <dev@michelmegens.net>
Merge branch 'master' into kconfig
kbuild: kconfig: added a switch to generate Makefiles

The user can choose to generate Makefiles or not by using the -M
flag. If -t is used (out-of-tree builds), -m is required aswell.

Signed-off-by: Michel Megens <dev@michelmegens.net>