LU-17635 lfsck: detect missing LMV hash

LU-17635 lfsck: detect missing LMV hash

Detect striped dirs with a missing LMV hash,
attempting to set it for trivial cases
mark BAD_TYPE otherwise.

HPE-bug-id: LUS-12379
Signed-off-by: Alexander Zarochentsev <alexander.zarochentsev@hpe.com>
Change-Id: Ibce4dd9cf01d653c431f7b7968691a4d704af9d9
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/55364
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Lai Siyao <lai.siyao@whamcloud.com>
Reviewed-by: Andrew Perepechko <andrew.perepechko@hpe.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>