Merge tag 'tpmdd-next-20180728' of git://git.infradead.org/users/jjs/linux-tpmdd into next-tpm

tpmdd updates for Linux 4.19

From Jarkko:

* Migrated away from PM runtime as explicit cmdReady/goIdle trasactions
  for every command is a spec requirement. PM runtime adds only a layer of
  complexity on our case.
* tpm_tis drivers can now specify the hwrng quality.
* TPM 2.0 code uses now tpm_buf for constructing messages. I think Tomas
  Winkler has done the same for TPM 1.2. I'll start digging those
  changes from the patchwork in the near future.
* Bug fixes and clean ups.