system_specific_process_info changes

For consistency:
* removed the content of system_specific_process_info.h to test.h and
  renamed its functions to start with 'tst_'

* renamed system_specific_process_info.c to tst_pid.c

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