LU-4179 mdt: skip open lock enqueue during resent

LU-4179 mdt: skip open lock enqueue during resent

Skip open lock enqueue, if the open lock has been
acquired(mdt_intent_fixup_resent) during resent.

Signed-off-by: wang di <di.wang@intel.com>
Signed-off-by: Keith Mannthey <keith.mannthey@intel.com>
Change-Id: I78228112b0ba8f93e05930fdd042763d77700626
Reviewed-on: http://review.whamcloud.com/8142
Tested-by: Jenkins
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>