Add fixes and improvements for arm64 deployment

Add fixes and improvements for arm64 deployment

[ Florin Dumitrascu <florin.dumitrascu@enea.com> ]

* arm64 support for OpenDaylight Fuel Plugin

[ Stanislaw Kardach <kda@semihalf.com> ]

* Limit ESP to first drive
* Remove default+timeout+tr from cobbler profile
* Fix puppet syntax errors
* Disable usb tablet on aarch64
* Support direct kernel boot for CirrOS TestVM on aarch64
* Remove git version signature not to confuse patches-export
* Fix VGA support for CirrOS TestVM
* Makefile: Add clean-{docker,build}.

[ Alexandru Avadanii <Alexandru.Avadanii@enea.com> ]

* Performance: Use gzip instead of xz compression.
* Switch mirror proto from https to http.
* Update TODO with remaining tasks.
* Disable amd64 Liberty fixture (no multi-arch support yet).
* m1.micro: Increase RAM size to 128MB for aarch64 images.

Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
Signed-off-by: Florin Dumitrascu <florin.dumitrascu@enea.com>
Signed-off-by: Stanislaw Kardach <kda@semihalf.com>