hg: jdk/jdk: 8242267: Shenandoah: regions space needs to be aligned by os::vm_allocation_granularity()

[shade at redhat.com]

Changeset: 546e0abd767e
Author:    shade
Date:      2020-04-07 14:32 +0200
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/546e0abd767e

8242267: Shenandoah: regions space needs to be aligned by os::vm_allocation_granularity()
Reviewed-by: rkennke, stuefe

! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp