Adds the TPM Required Policy to the BMC BIOS
Adds the TPM Required Policy to the BMC BIOS

This commit adds the TPM Required Policy, as an enumeration,
to the BMC BIOS.

Adds both a current value and a pending value.

The enumeration fields are 'Required' and 'Not Required'
where 'Required' is interpreted as a functional TPM is required
to the boot the system and 'Not Required' is interpreted as *not*
needing a functional TPM to boot the system.

Signed-off-by: Roland Veloz <768fb49134ab823c765de70e7067d9f65f5d0a3e@us.ibm.com>
Change-Id: I52ab04414e63f8e4e433b5c11440255d15e36e10

openbmc/pldm,openbmc/pldm,openbmc/pldm