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Support TPM2 in the IBM vTPM driver. The hypervisor tells us what version of TPM is connected through the vio_device_id. In case a TPM2 device is found, we set the TPM_CHIP_FLAG_TPM2 flag and get the command codes attributes table. The driver does not need the timeouts and durations, though. Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Acked-by: Nayna Jain <nayna@linux.ibm.com> Tested-by: Nayna Jain <nayna@linux.ibm.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>