LU-10114 hsm: add OBD_CONNECT2_ARCHIVE_ID_ARRAY to pass archive_id lists in array

LU-10114 hsm: add OBD_CONNECT2_ARCHIVE_ID_ARRAY to pass archive_id lists in array

Clients registed to MDS with OBD_CONNECT2_ARCHIVE_ID_ARRAY will
use array to pass ARCHIVED IDs. While clients without it still
use bitmap. This flag allows old clients connect to new MDSs.

Test-Parameters: trivial
Change-Id: I61a691fc262fdc921d5ff4aa88c1fd623f09d565
Signed-off-by: Teddy Zheng <teddy@ddn.com>
Signed-off-by: Li Xi <lixi@ddn.com>
Reviewed-on: https://review.whamcloud.com/32806
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>