Update wafer_checks.xml

wafer_checks.xml

@@ -188,7 +188,7 @@
         <module name="AbbreviationAsWordInName">
             <property name="ignoreFinal" value="false"/>
             <property name="allowedAbbreviationLength" value="1"/>
-            <property name="allowedAbbreviations" value="XML,JSON,DB,URL,LDAP,DN,AD,VM,PS,GBK,AES,DES"/>
+            <property name="allowedAbbreviations" value="XML,JSON,DB,URL,LDAP,DN,AD,VM,PS,GBK,AES,DES,DTO,PO,AOP"/>
         </module>
         <module name="OverloadMethodsDeclarationOrder"/>
         <module name="VariableDeclarationUsageDistance"/>