LU-5003 llog: do not fix remote llogs

LU-5003 llog: do not fix remote llogs

prevent llog_process_thread() from trying to fix
remote llog by a direct write to the header.

Xyratex-bug-id: MRP-2076
Change-Id: I4f8b758a38ce3f51c24fa7397ad5c4b341e27ed0
Signed-off-by: Alexander Zarochentsev <alexander.zarochentsev@seagate.com>
Reviewed-on: http://review.whamcloud.com/11955
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Mike Pershin <mike.pershin@intel.com>
Reviewed-by: James Nunez <james.a.nunez@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>