A sandbox driver and test are added for the qfw uclass, and a test in
QEMU added for qfw functionality to confirm it doesn't break in real
world use.
Signed-off-by: NAsherah Connor <ashe@kivikakk.ee>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>