image-ktn: Create SWUpdate images for existing image recipes
Instead of having separate recipes for swupdate images, it's much more convenient to add swupdate image support to all the existing image-ktn* recipes by inheriting the swupdate-image class.
This will make commands like "bitbake image-ktn" create a *.swu image file. Please note that the included sw-description file is a dummy and needs to be overridden with platform-specific content.
See meta-ktn-imx!37 (merged) for the platform-specific part for i.MX.
For MP1 adaptions see
Edited by Eberhard Stoll