Provide site value to suppress credential check messages

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/branches/2.8@15776 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/lib/xcat/plugins/destiny.pm

@@ -55,7 +55,7 @@ sub process_request {
   $request = shift;
   $callback = shift;
   $subreq = shift;
-  if (xCAT::Utils->isMN()) {
+  if (not $::XCATSITEVALS{disablecredcheck} and xCAT::Utils->isMN()) {
       my $result= xCAT::TableUtils->checkCredFiles($callback);
   }
   if ($request->{command}->[0] eq 'getdestiny') {