Tests builds and boots qemu into uki binary with systemd and sysvinit.
Due to depedency to x86 specific ovmf UEFI firmware, tests
are specific to x86 curently. UEFI firmware for ARM can be generated
via qemuarm64-secureboot machine in meta-arm and similar tests
on qemu will pass.
Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>