[foreign] RFR: 8234238: AArch64: foreign build broken in directUpcallHandler_aarch64.cpp

[Nick Gasson]

Hi,

I missed the thread for 8234172 on the list last week. This is the same 
fix, for AArch64:

Bug: https://bugs.openjdk.java.net/browse/JDK-8234238
Webrev: http://cr.openjdk.java.net/~ngasson/foreign/8234238/webrev.01/

Thanks,
Nick