hg: jdk9/hs-rt/hotspot: 8145292: PPC64: fix build after "8046936: JEP 270: Reserved Stack Areas for Critical Sections"

[goetz.lindenmaier at sap.com]

Changeset: ac3087a9d55a
Author:    goetz
Date:      2015-12-14 10:04 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/ac3087a9d55a

8145292: PPC64: fix build after "8046936: JEP 270: Reserved Stack Areas for Critical Sections"
Reviewed-by: simonis

! src/cpu/ppc/vm/globals_ppc.hpp