Adopt the jobs-to-kas helper script from meta-arm, which uses Gitlab's
parellel matrix to overlay additional Kas files on top of the base Kas
file (based on $CI_JOB_NAME).
This allows multiple combinations of Kas file overlays to be easily
tested with minimal boilerplate.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
Tested-by: Jon Mason <jon.mason@arm.com>
Signed-off-by: Naveen Saini <naveen.kumar.saini@intel.com>