hg: jdk/sandbox: 8232572: Add hooks for custom output dir in Bundles.gmk

[chris.hegarty at oracle.com]

Changeset: ae0af9fb3dbb
Author:    erikj
Date:      2019-10-21 09:26 -0700
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/ae0af9fb3dbb

8232572: Add hooks for custom output dir in Bundles.gmk
Reviewed-by: tbell

! make/Bundles.gmk