Set checkstyle import order to match existing code

Author: jeffgbutler

checkstyle-override.xml

@@ -188,7 +188,7 @@
         <module name="CustomImportOrder">
             <property name="sortImportsInGroupAlphabetically" value="true"/>
             <property name="separateLineBetweenGroups" value="true"/>
-            <property name="customImportOrderRules" value="STATIC###THIRD_PARTY_PACKAGE"/>
+            <property name="customImportOrderRules" value="STATIC###STANDARD_JAVA_PACKAGE###THIRD_PARTY_PACKAGE"/>
         </module>
         <module name="MethodParamPad"/>
         <module name="ParenPad"/>