Ticket 49689 - Fix local "make install" after adding cockpit subpackage
    
    Bug Description:  When doing a local "make install" the cockpit UI files
                      are not copied to the "buildroot", which then leads to
                      rsync failing.
    
    Fix Description:  If the "source directory" is not the same as the current
                      directory, then its a local "make install" and not a
                      "make rpms".  In that case just copy over the cockpit ui
                      directory to the local buildroot.  This makes it easy to
                      test Cockpit UI changes using "make install".
    
    https://pagure.io/389-ds-base/issue/49689
    
    Reviewed by: mreynolds(one line commit rule)