mosys: Add new elog message for Cr50 required reboot

Under some scenearios the key ladder on the Cr50 can get disabled.  If
this state is detected, trigger a reboot of the Cr50 to restore full
TPM functionality.  This change adds a new elog message to track this

Related coreboot change:

TEST=Built mosys on sarien platform.
TEST=Ran 'gsctool -a -m disable' and reboot. Verfied the Cr50 performs
and extra reboot and verified the new elog type is displayed in the
event log.
Tested-by: Keith Short <>

Change-Id: I8498a81f65dcef3c7fa8f2e8d01cff682cc008b0
Signed-off-by: Keith Short <>
Commit-Ready: ChromeOS CL Exonerator Bot <>
Reviewed-by: Julius Werner <>
2 files changed