tpm: TPM 2.0 FIFO Interface

Detect TPM 2.0 by using the extended STS (STS3) register. For TPM 2.0,
instead of calling tpm_get_timeouts(), assign duration and timeout
values defined in the TPM 2.0 PTP specification.

The TPM 2.0 detection was originally implemented by Will Arthur, which
I then extended with power management support and fixing various issues
like requesting locality before detecting TPM (for the case when the
firmware does not initialize the TPM).

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Will Arthur <will.c.arthur@intel.com>
Reviewed-by: Jasob Gunthorpe <jason.gunthorpe@obsidianresearch.com>
Reviewed-by: Stephan Berger <stephan.berger@linux.vnet.ibm.com>