do not replace modified psprint.conf from rpm packages (fdo#50307)

mark the file as %config

Change-Id: I445a0e4570eb15113da58a5f824d618e44ab3bdd

scp2/source/ooo/file_extra_ooo.scp

@@ -225,7 +225,7 @@ End
 File gid_File_Extra_Fontunxpsprint
     Dir = gid_Dir_Psprint;
     TXT_FILE_BODY;
-    Styles = (ARCHIVE, DONT_OVERWRITE);
+    Styles = (ARCHIVE, DONT_OVERWRITE, CONFIGFILE);
     Name = "fontunxpsprint.zip";
 End