Introduce a helper to get the cached cr50 firmware version. This
information is in turn used to identify the strap configuration
supported by Cr50.
BUG=None
TEST=Ensure that Drawcia board boots to OS. Ensure that the version
cached cr50 firmware version is returned.
Change-Id: Id84b152993f253878a6c133cc433a0da2c990cf2
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44653
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Sam McNally <sammc@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
7b58f9413d