tpm: drop manufacturer_id from struct tpm_vendor_specific

Dropped manufacturer_id from struct tpm_vendor_specific and redeclared
it in the private struct priv_data that tpm_tis uses because the field
is only used tpm_tis.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>