hg: build-infra/jdk9/hotspot: Include hotspot conf files in spec.gmk, as a hack to mimick a future pure implementation in configure

[magnus.ihse.bursie at oracle.com]

Changeset: 6797b0fc90b5
Author:    ihse
Date:      2015-10-09 14:40 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk9/hotspot/rev/6797b0fc90b5

Include hotspot conf files in spec.gmk, as a hack to mimick a future pure implementation in configure

! makefiles/Common.gmk