hg: jdk8/tl/jdk: 7151595: Disable creation of db demos if NO_DEMOS is specified

[mike . duigou]

Changeset: 2900d4ae2d39
Author:    mduigou
Date:      2012-03-08 13:44 -0800
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/2900d4ae2d39

7151595: Disable creation of db demos if NO_DEMOS is specified
Reviewed-by: weijun, dholmes

! make/common/Release.gmk