LU-7904 osd: honor LOC_F_NEW

LU-7904 osd: honor LOC_F_NEW

the caller passes this flag to ensure OSD that the object being
initialized is new so OSD can skip save on lookup in OI.

Change-Id: Iaebc23071420f812571c7652a9f29a7e9fc7b67e
Signed-off-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-on: http://review.whamcloud.com/19089
Tested-by: Jenkins
Reviewed-by: Fan Yong <fan.yong@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>