Convert the sandbox TPM driver to use driver model. Add it to the device
tree so that it can be found on start-up.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Acked-by: NChristophe Ricard <christophe-h.ricard@st.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>