Part of [Yocto 2388]
Update class DeployImageDialog to get ready for a standalone deploy
image tool. The standalone tool can be run directly without hob, and
add a button to select image file. So adjust the layout of
DeployImageDialog.
(Bitbake rev: 399cfbaf36ccd4b934e25f915e64b87f32a3eb82)
Signed-off-by: Kang Kai <kai.kang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>