LU-7001 osp: fix llog processing

LU-7001 osp: fix llog processing

The osp_sync_thread base on fact that llog_cat_process
will not end until umount. This is worng when processing reaches
bottom of catalog, or if catalog is wrapped.
The patch fixes this issue.

For wrapped catalog llog_process_thread could process old
record.
1 thread llog_process_thread read chunk and proccing first record
2 thread add rec to this catalog at this chunk and
  update bitmap
1 check bitmap for next idx and process old record

Test conf-sanity 106 was added.

Lustre-change: https://review.whamcloud.com/26132
Lustre-commit: 8da9fb0cf14cc79bf1985d144d0a201e136dfe51

Signed-off-by: Alexander Boyko <alexander.boyko@seagate.com>
Seagate-bug-id: MRP-4235
Change-Id: Ifc983018e3a325622ef3215bec4b69f5c9ac2ba2
Reviewed-by: Andriy Skulysh
Reviewed-by: Mike Pershin <mike.pershin@intel.com>
Signed-off-by: Minh Diep <minh.diep@intel.com>
Reviewed-on: https://review.whamcloud.com/32097
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>