hg: jdk8/tl: 7143162: Allow disable building of jdk demos and samples

[mike . duigou]

Changeset: 28f2fe471725
Author:    mduigou
Date:      2012-02-27 18:09 -0800
URL:       http://hg.openjdk.java.net/jdk8/tl/rev/28f2fe471725

7143162: Allow disable building of jdk demos and samples
Reviewed-by: ohair

! make/sanity-rules.gmk