waitpid06: use the new API

 * Use the new LTP API
 * Use the checkpoint interface instead of wait_for_parent()
 * Drop UCLINUX support

Common items were moved to a header file.

Signed-off-by: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
2 files changed