make packageinfo target

Change-Id: Id5f6f5c1f3e46df2d9033ccd5bbf2af6ab38a9e8
Reviewed-on: https://gerrit.libreoffice.org/6754
Reviewed-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>
Tested-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>