Update lint.xml

Ignore NewApi issue in src/org/cocos2dx/lib/Cocos2dxHelper.java

Author: formatCvt

Diff for: cocos/platform/android/java/lint.xml

@@ -6,5 +6,6 @@
     <issue id="NewApi">
         <ignore path="src/org/cocos2dx/lib/Cocos2dxActivity.java" />
         <ignore path="src/org/cocos2dx/lib/GameControllerHelper.java" />
+        <ignore path="src/org/cocos2dx/lib/Cocos2dxHelper.java" />
     </issue>
-</lint>
+</lint>