hg: jdk7/build/jdk: 6987107: Add variable to add to but not modify non-fcs version string

[kelly.ohair at oracle.com]

Changeset: fd6873594ae2
Author:    ohair
Date:      2010-11-30 17:46 -0800
URL:       http://hg.openjdk.java.net/jdk7/build/jdk/rev/fd6873594ae2

6987107: Add variable to add to but not modify non-fcs version string
Reviewed-by: jcoomes, dholmes, andrew, kvn

! make/common/shared/Defs.gmk
! make/jprt.gmk