Merge remote-tracking branch 'remotes/stefanberger/tags/pull-tpm-2017-10-24-1' into staging

Merge tpm 2017/10/24 v1

# gpg: Signature made Wed 25 Oct 2017 06:06:55 BST
# gpg:                using RSA key 0x75AD65802A0B4211
# gpg: Good signature from "Stefan Berger <stefanb@linux.vnet.ibm.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B818 B9CA DF90 89C2 D5CE  C66B 75AD 6580 2A0B 4211

* remotes/stefanberger/tags/pull-tpm-2017-10-24-1:
  tpm: print buffers received from TPM when debugging
  vl: remove unnecessary #ifdef CONFIG_TPM
  tpm: remove unnecessary #ifdef CONFIG_TPM
  tpm: add stubs
  tpm: add missing include

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>