Add inet6AddressHolderClass JniConstant

Bug: 29067535
Change-Id: Ie658014fc46e616015d85ba8cfac2a265ac11fef
diff --git a/include/nativehelper/JniConstants.h b/include/nativehelper/JniConstants.h
index af9e70a..82efa0d 100644
--- a/include/nativehelper/JniConstants.h
+++ b/include/nativehelper/JniConstants.h
@@ -48,6 +48,7 @@
     static jclass fileDescriptorClass;
     static jclass gaiExceptionClass;
     static jclass inet6AddressClass;
+    static jclass inet6AddressHolderClass;
     static jclass inetAddressClass;
     static jclass inetAddressHolderClass;
     static jclass inetSocketAddressClass;