hg: shenandoah/jdk: Fix limited x86_32 support

[shade at redhat.com]

Changeset: 7361c5611712
Author:    shade
Date:      2018-09-16 21:26 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/7361c5611712

Fix limited x86_32 support

! src/hotspot/cpu/x86/gc/shenandoah/shenandoahBarrierSetC1_x86.cpp