webos-image: pmcertificatemgr=28

:Release Notes:
Fix procedure of local certificates database creation in
case it's not exists during pmcerificatemgr initialisation.

:Detailed Notes:
The fixes in pmcertificatemgr between submissions/27..submissions/28:
c659fee Fix initialization issue of pmcertificatemgr

- Stop PmCertificateMgrService
- Delete local certs database directory (/var/ssl)
- Try to operate on local certificates database via service: add, delete,
  list
- All required files and directories were created successfully
- All operation were performed successfully
- This procedure were repeated several times

:QA Notes:

:Issues Addressed:
[GF-7979] pmcertificatemgr does not initialize
[GF-12828] CCC: pmcertificatemgr=28

Open-webOS-DCO-1.0-Signed-off-by: Viacheslav Belenko <viacheslav.belenko@lge.com>

Change-Id: I8f7aceacd34f50453acee5a7ef7a479cb20ad608
Reviewed-on: https://g2g.palm.com/3029
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>