LU-8837 lustre: make ldlm and target file lists

LU-8837 lustre: make ldlm and target file lists

Instead of listing files for ldlm and target in ptlrpc,
list them in Makefile.in in the respective directories.

This requires that Makefile.am be moved to autoMakefile.am to preserve
MOSTLYCLEANFILES.

This simplifies the makefiles in preparation for changes in what is
included on the client.

Test-Parameters: trivial
Signed-off-by: Mr NeilBrown <neilb@suse.de>
Change-Id: I9f937e9460f1fe2ef436f8f7ace8999dd510885e
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/41767
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>