hg: jdk/sandbox: 8210647: libsaproc is being compiled without optimization.

[chris.hegarty at oracle.com]

Changeset: c608b2190460
Author:    sgehwolf
Date:      2018-09-14 14:47 +0200
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/c608b2190460

8210647: libsaproc is being compiled without optimization.
Summary: Compile with high optimization instead of none.
Reviewed-by: erikj, jgeorge, sballal

! make/lib/Lib-jdk.hotspot.agent.gmk