fix bug 3535388: FB 'snmpcfg=enable' doesn't truly work for the first time

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/branches/2.7@13104 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

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

@@ -4146,6 +4146,10 @@ sub clicmds {
     $Rc |= shift(@$result);
     push @cfgtext,@$result;
   }
+  # dealing with SNMP v3 disable in genesis state#
+  if ($promote_pass ne $pass) {
+    snmpcfg($t, 'disable', $user, $promote_pass, $mm);
+  }
   if ($reset) {
     $t->cmd("reset -T system:$mm");
     push @data, "The management module has been reset to load the configuration";