LU-9469 ldiskfs: add additional attach_jinode call

LU-9469 ldiskfs: add additional attach_jinode call

In some execution paths jinode data structures are not
getting initialized. Add an extra init call to fix that.

Test-Parameters: clientdistro=sles12sp2 testlist=conf-sanity \
  mdsdistro=sles12sp2 ossdistro=sles12sp2 testgroup=review-ldiskfs \
  mdtfilesystemtype=ldiskfs ostfilesystemtype=ldiskfs

Lustre-change: https://review.whamcloud.com/28665
Lustre-commit: 84f690eee28f3b9123b89249c568dd6255a4a348

Signed-off-by: Bob Glossman <bob.glossman@intel.com>
Change-Id: I087eb06b9c5122be1cfd0aabbc04ea1db7ec765a
Reviewed-by: Yang Sheng <yang.sheng@intel.com>
Reviewed-by: Hongchao Zhang <hongchao.zhang@intel.com>
Signed-off-by: Minh Diep <minh.diep@intel.com>
Reviewed-on: https://review.whamcloud.com/28968
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>