RFR: 8257396: AArch64 Zero build is broken after JDK-8252684

[David Holmes]

On Mon, 30 Nov 2020 08:49:54 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Zero does not have AArch64 assembler, so attempt to use it from the test fails to build. The fix is trivial: sense if we are building Zero.
> 
> Testing:
>  - [x] Linux aarch64 zero build

Lets hope this is the last adjustment needed in relation to this change.

Thanks,
David

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Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/1511