When used with a device tree, sandbox now requires a 'reset' controller. Add
this to the device trees so that reset works and the tests can complete.
Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes: 5010d98f (sandbox: Use the reset driver to handle reset)
Add a description of how to implement verified boot using signed FIT images,
and a simple test which verifies operation on sandbox.
The test signs a FIT image and verifies it, then signs a FIT configuration
and verifies it. Then it corrupts the signature to check that this is
detected.
Signed-off-by: Simon Glass <sjg@chromium.org>