selftest: wictestdisk: machine agnostic WKS for use with selftest
Add a kickstart for an image that is not limited to use on x86 compatible
machines. This allows us to run more wic tests on non-x86 architectures.
Signed-off-by: Maciej Borzecki <maciej.borzecki@rndity.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>