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

[mikael.vidstedt at oracle.com]

Changeset: 6860d59d26f4
Author:    mikael
Date:      2017-04-13 15:02 -0700
URL:       http://hg.openjdk.java.net/portola/portola/hotspot/rev/6860d59d26f4

Make Serviceability Agent attach functionality optional

! make/lib/Lib-jdk.hotspot.agent.gmk
! src/jdk.hotspot.agent/linux/native/libsaproc/LinuxDebuggerLocal.c
! src/jdk.hotspot.agent/linux/native/libsaproc/libproc_impl.c
! src/jdk.hotspot.agent/linux/native/libsaproc/ps_proc.c