Upload latest official CIP Kernel builds to AWS S3
At the moment all built Kernels are uploaded to a separate "CI" storage box on AWS S3.
We should also add the builds from the 'official' CIP branches/tags to the main CIP S3 area so that they get used by anyone who wants them. (linux-4.4.y-cip, linux-4.19.y-cip, linux-4.4.y-cip-rt, linux-4.19.y-cip-rt + CIP tags)
Links to these builds could also be added to the CIP wiki pages.