The busy cursor would never change after pressing Stop button.
It should be set after the possible return inside machine_combo_changed_cb()
method.
(Bitbake rev: d440d3ad4b2d99bc20e06d2d5f5e76d07864dff3)
Signed-off-by: Irina Patru <irina.patru@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>