hg: shenandoah/jdk8u/hotspot: Fix bad constant definition

[zgu at redhat.com]

Changeset: 0b59034b0192
Author:    zgu
Date:      2017-03-21 13:53 -0400
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/0b59034b0192

Fix bad constant definition

! src/share/vm/gc_implementation/shenandoah/shenandoahCollectorPolicy.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahCollectorPolicy.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoah_globals.hpp