LU-14291 batch: don't include lustre_update.h for client only builds

LU-14291 batch: don't include lustre_update.h for client only builds

The header lustre_update.h contains a huge amount of server only
code. Remove lustre_update.h for a client only build and include
only what we need for client directly.

Test-Parameters: trivial
Change-Id: I84dc39672340045bde09249d98f32aa9abec63b8
Signed-off-by: James Simmons <jsimmons@infradead.org>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/50258
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>