RFR: 8272050: typo in MachSpillCopyNode::implementation after JDK-8131362

[Vladimir Kozlov]

On Mon, 9 Aug 2021 21:32:45 GMT, Dean Long <dlong at openjdk.org> wrote:

> After refactoring done by JDK-8131362, the fpr --> fpr case now checks "cbuf" instead of "is64" when it decides between fmovd and fmovs. But since this is register to register, it appears to be harmless.

Trivial

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Marked as reviewed by kvn (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/5060