git: openjdk/jdk: 8300912: Update java/nio/MappedByteBuffer/PmemTest.java to run on x86_64 only

[Bill Huang]

Changeset: 27cf6385
Author:    Bill Huang <bhuang at openjdk.org>
Date:      2023-04-11 21:39:03 +0000
URL:       https://git.openjdk.org/jdk/commit/27cf63853cc6ab2351eee4f0f2860bae16b2e087

8300912: Update java/nio/MappedByteBuffer/PmemTest.java to run on x86_64 only

Reviewed-by: msheppar

! test/jdk/java/nio/MappedByteBuffer/PmemTest.java