debugging cleanups

decouple debug kernel package from the use_debug variable

There are times when we want to enable debugging to view the kernel messages, however we don't necessarily want to run with a debug kernel. Introduce a new variable use_kernel_debug_package and update everything else to use use_debug and use_kernel_debug_package where applicable.

enable autoinit.debug if debugging is enabled

Tested with:

make DEFINES+='use_debug=true use_autoinit=true autoinit_root="/dev/vda3"' cs9-qemu-developer-regular.x86_64.qcow2

Signed-off-by: Brian Masney bmasney@redhat.com