hg: portola/portola: Make Serviceability Agent attach functionality optional

[mikael.vidstedt at oracle.com]

Changeset: 7f012cf14d29
Author:    mikael
Date:      2017-04-13 15:02 -0700
URL:       http://hg.openjdk.java.net/portola/portola/rev/7f012cf14d29

Make Serviceability Agent attach functionality optional

! common/autoconf/configure.ac
! common/autoconf/hotspot.m4
! common/autoconf/spec.gmk.in