LU-15526 mdt: enable remote PDO lock

LU-15526 mdt: enable remote PDO lock

Once parent directory is located on remote MDT, enqueue two locks like
local PDO lock if it's locked in LCK_PW mode. With this change,
creating directories (either local or remote) under one directory will
hardly trigger commit-on-sharing (unless their PDO hashes equal).

Updated sanityn 33c.

Signed-off-by: Lai Siyao <lai.siyao@whamcloud.com>
Change-Id: I28030c45fbf137f5912863ae5eacfc8372db6754
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/46733
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Qian Yingjin <qian@ddn.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>