xfstests: Use libtool to install applications

xfstests: Use libtool to install applications

This patch replaces the INSTALL macro with LTINSTALL so that libtool is used
to install the applications.  Libtool will install the binary from the proper
location and display a warning if any shared library dependancies are not
properly installed.  This ensures that a libtool wrapper shell script is not
installed in place of application when libtool wrappers are being used.

Signed-off-by: Rich Johnston <rjohnston@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myer <bpm@sgi.com>