keystore-blob: remove unused variable ...

By cleaning up the code the compiler does not emit the following warning
anymore:

    src/keystore-blob.c: In function 'keystore_get_secret':
    src/keystore-blob.c:25:15: warning: unused variable 'modifier' [-Wunused-variable]
      char *blob, *modifier, *payload;
                   ^~~~~~~~

Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Roland Hieber <rhi@pengutronix.de>

barebox-state: implement skipping authentification (again) ...

Implement authentification again, this time wihtout the need of
passing a "force" argument through half of the function call stack.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

barebox-state: make state_get() definition consistent to its prototype ...

In 2839d4f6f4 state_get() got an additional argument, but its prototype
in barebox-state.h was never adjusted. Include the file containing
the prototype from the file containing the function definition so that
this bug can be detected by the compiler. Also add the missing argument
to the callers.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

barebox-state: Import updated state code ...

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>

keystore-blob: use system independent path to blob_gen ...

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

keystore: add imx6 caam based keystore implementation ...

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>