LU-4315 docs: Fix Makefile.am to have one man page per line

LU-4315 docs: Fix Makefile.am to have one man page per line

The man pages for lfs(1) and lctl(8) are quite large. Splitting
them into one page per subcommand will allow for more detailed
information for each subcommand.

This patch modifies the Makefile.am so that the source man pages
are listed one per line.  This will make it easier for subsequent
patches to add new pages.  Existing pages that were missing from
the Makefile.am have been added to it, and an obsolete page has
been removed from the Makefile.am and been deleted.

Test-Parameters: trivial
Signed-off-by: Steve Guminski <stephenx.guminski@intel.com>
Change-Id: If312fff9bc5e68176caf0a70a51876e69b1614d8
Reviewed-on: https://review.whamcloud.com/24371
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>