hg: jdk9/sandbox/hotspot: Now hotspot builds fine on OpenBSD.

[magnus.ihse.bursie at oracle.com]

Changeset: 00db6cc7d85d
Author:    ihse
Date:      2015-12-20 00:09 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/hotspot/rev/00db6cc7d85d

Now hotspot builds fine on OpenBSD.

! make/bsd/makefiles/vm.make
! src/os/bsd/vm/jsig.c
! src/share/vm/utilities/decoder.cpp