build/archive changelog for mdg

Change-Id: Ia4f0a11579cd88e53477e7c9047739abc9744bf9
Signed-off-by: Mike Marchetti <mmarchetti@sandvine.com>
diff --git a/tools/gen-repo.sh b/tools/gen-repo.sh
index 502b941..b1e768f 100755
--- a/tools/gen-repo.sh
+++ b/tools/gen-repo.sh
@@ -113,6 +113,7 @@
 
 cp -R $BUILD_NUMBER/dists/$IN_REPO $BASE_DIR/dists/$OUT_REPO
 cp -R $BUILD_NUMBER/pool $BASE_DIR/
+[ -d "$BUILD_NUMBER/changelog" ] && cp -R $BUILD_NUMBER/changelog $BASE_DIR/
 
 cd $BASE_DIR