Merge tpm 2018/10/29 v2

# gpg: Signature made Tue 30 Oct 2018 21:40:24 GMT
# gpg:                using RSA key 75AD65802A0B4211
# 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-2018-10-29-2:
  tpm: Zero-init structure to avoid uninitialized variables in valgrind log
  MAINTAINERS: Change my email address to the new domain
  docs: tpm: Mention implemented TPM CRB interface emulation and specs
  tests/tpm: Display if swtpm is not found or --tpm2 not supported
  tests/tpm: fix tpm_util_swtpm_has_tpm2()
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>