LU-16717 mdt: resume dir migration with bad_type

LU-16717 mdt: resume dir migration with bad_type

LFSCK may set hash type to "none,bad_type" upon migration failure,
set it back to "fnv_1a_64,migrating,bad_type,fixed" to allow
migration resumption. fnv_1a_64 is set because it's the default hash
type, and now that we don't know the hash type in the original
migration command, just try with it.

LFSCK just add "bad_type" flag on such directory, so that such
migration can always be resumed in the future.

Add sanity 230z.

Lustre-change: https://review.whamcloud.com/50797
Lustre-commit: 151650e468ab423e831c30d635ea380e0434a122

Signed-off-by: Lai Siyao <lai.siyao@whamcloud.com>
Change-Id: I19606aefcb9115e6724843785aea89a1c380e23f
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Hongchao Zhang <hongchao@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/51230
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Andreas Dilger <adilger@whamcloud.com>