hg: jdk/submit: 8210761: libjsig is being compiled without optimization

[sgehwolf at redhat.com]

Changeset: 31ada26db270
Author:    sgehwolf
Date:      2018-09-21 16:58 +0200
URL:       http://hg.openjdk.java.net/jdk/submit/rev/31ada26db270

8210761: libjsig is being compiled without optimization
Reviewed-by: duke

! make/lib/Lib-java.base.gmk