Create buildroot config for arm64 unittests

Create a configuration that generates the rootfs image as well as qemu
host utilities to use for running kvm-unit-tests.

* Use sysv instead of busybox for licensing issues
* Add buildroot options to make the build isolated and reproducible
* Add dependencies required to run the kvm-unit-tests
* Append inittab to run /dev/vdb, which is assumed to have kvm-unit-test
* Build qemu for the host, support for aarch64-softmmu

Signed-off-by: Fuad Tabba <tabba@google.com>
1 file changed