Fix Fontmap.GS lookup path for Helvetica-Narrow-Bold-Oblique
    
      Related changes:
        * ghostscript-9.20-runlibfileifexists.patch removed (conflicted with
          new patch below)
        * ghostscript-9.22-fix-Fontmap.GS.patch added (accepted by upstream,
          will be part of ghostscript-9.23 release)
        * CIDFnmap & cidfmap deleted (conflicted with path above)
        * specfile updated as necessary
    
      Resolves: #1517518