webos-image: pmlogdaemon=113

:Release Notes:
Add ls-method that can create backup file for /var/log
to PmLogDaemon

:Detailed Notes:
New API will gather and compress all log files which are located in
/var/log should be backup to /var/spool/rdxd//previous_boot_logs.tar.gz

pmlogdaemon: submissions/113
e4aba12 Add ls-method to make backup file for /var/log

:Testing Performed:
Compiled locally and tested on a device.

:QA Notes:

:Issues Addressed:
[GF-43166] Add ls-method that can create backup file for /var/log
           to PmLogDaemon
[GF-45482] CCC: pmlogdaemon=113

Open-webOS-DCO-1.0-Signed-off-by: Hongjeon Ha <hj.ha@lge.com>

Change-Id: Id6c060444aadc5fefeea05f82deb3449279f110f
Reviewed-on: https://g2g.palm.com/3861
Reviewed-by: Build Verification
Reviewed-by: Hongjeon Ha <hj.ha@lge.com>
Tested-by: Hongjeon Ha <hj.ha@lge.com>
Reviewed-by: Earnest Son <earnest.son@lge.com>
Reviewed-by: Juhee Cho <juhee.cho@lge.com>
Reviewed-by: Jongho Kim <jongho1208.kim@lge.com>
Tested-by: Jongho Kim <jongho1208.kim@lge.com>