re-order patches to be consistant with the README file

frg-buildfixes/mozilla/series

@@ -2508,8 +2508,8 @@ TOP-9999999-fixlangpack-257.patch
 1490575-2-64a1.patch
 1490575-3-64a1.patch
 1490575-4-64a1.patch
-9999999-disablemaint-mozilla-257.patch
 1529227-2-nsssymbols-257.patch
+9999999-disablemaint-mozilla-257.patch
 1520340-1-66a1.patch
 1520340-2-66a1.patch
 1520340-3-66a1.patch