Next step to get rid of the header files in icnlude/configs. Move
most of the defines to km83xx.c directly. Some remaining defines
which should go to Kconfig are moved to km-mpc83xx.h for now.
Also remove some unused defines and move one define to powerpc.env
as we only need it there.
Signed-off-by: Holger Brunck <holger.brunck@hitachienergy.com>
Use already present common.env file and add a powerpc specific env
so that we can move all the environment defines to text files.
Signed-off-by: Holger Brunck <holger.brunck@hitachienergy.com>