hg: jdk/sandbox: 8217371: Incorrect LP64 guard in x86.ad after JDK-8210764 (Update avx512 implementation)

[chris.hegarty at oracle.com]

Changeset: 6121eee15c23
Author:    sviswanathan
Date:      2019-01-30 13:47 -0800
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/6121eee15c23

8217371: Incorrect LP64 guard in x86.ad after JDK-8210764 (Update avx512 implementation)
Reviewed-by: kvn, neliasso, thartmann

! src/hotspot/cpu/x86/x86.ad