hg: jdk/submit: 8242459: ForceNUMA and only one available NUMA node hits a guarantee

[kim.barrett at oracle.com]

Changeset: a0fb6a36b1fb
Author:    kbarrett
Date:      2020-04-28 03:02 -0400
URL:       https://hg.openjdk.java.net/jdk/submit/rev/a0fb6a36b1fb

8242459: ForceNUMA and only one available NUMA node hits a guarantee
Summary: Fix some asserts to handle the single-NUMA node + ForceNUMA case.
Reviewed-by: sjohanss, tschatzl

! src/hotspot/share/gc/g1/g1NUMAStats.cpp