hg: jdk8/build: 8000461: Top level build doesn't pass OPENJDK=true through to the hotspot build

[david.holmes at oracle.com]

Changeset: 4b54d77a6831
Author:    dholmes
Date:      2012-10-09 02:08 -0400
URL:       http://hg.openjdk.java.net/jdk8/build/rev/4b54d77a6831

8000461: Top level build doesn't pass OPENJDK=true through to the hotspot build
Summary: Add OPENJDK to the COMMON_BUILD_ARGUMENTS
Reviewed-by: tbell

! make/Defs-internal.gmk