ICU-20509 Add dependencies on langdata, regiondata to packagingCheck.
diff --git a/icu4j/build.xml b/icu4j/build.xml
index a8dfaa5..420f832 100644
--- a/icu4j/build.xml
+++ b/icu4j/build.xml
@@ -571,7 +571,7 @@
         </icu-junit>
     </target>
 
-    <target name="packagingCheck" depends="info, core, packaging-tests" description="Run packaging tests">
+    <target name="packagingCheck" depends="info, core, langdata, regiondata, packaging-tests" description="Run packaging tests">
         <antcall target="_packagingCheckNoLangData"/>
         <antcall target="_packagingCheckNoRegionData"/>
         <antcall target="_packagingCheckNoLangNorRegionData"/>