BugLink: http://bugs.launchpad.net/bugs/1520436

We have two users of core part right now. Let them to select core part
automatically.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
(cherry picked from commit 6f90a00c)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>