LU-1678 mdd: don't create LOV EA by going thru .lustre path

When a file is created with O_LOV_DELAY_CREAT, we should not create
its LOV EA data by going through .lustre path.

Add a test to sanity.sh open by fid test suite (test_154).

Signed-off-by: jc lafoucriere <jacques-charles.lafoucriere@cea.fr>
Signed-off-by: Bobi Jam <bobijam@whamcloud.com>
Change-Id: Ib223da44d16bf3a541269d5cfb60826e43345493
Reviewed-on: http://review.whamcloud.com/3483
Tested-by: Hudson
Reviewed-by: Lai Siyao <laisiyao@whamcloud.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>