This commit adds the file path of ceph log directories to the job's
info.yaml log file. The motivation behind this is, in case of job
timeout, the logs would still be tranferred to teuthology host
before nuking test machines using these ceph log directory paths in
job's info.yaml log file.
Signed-off-by: Shraddha Agrawal <shraddha.agrawal000@gmail.com>