Merge remote-tracking branch 'remotes/stefanberger/tags/pull-tpm-2020-03-04-2' into...

Merge tpm 2020/03/04 v2

# gpg: Signature made Thu 05 Mar 2020 17:21:05 GMT
# gpg:                using RSA key B818B9CADF9089C2D5CEC66B75AD65802A0B4211
# gpg: Good signature from "Stefan Berger <stefanb@linux.vnet.ibm.com>" [unknown]
# 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-2020-03-04-2:
  test: tpm-tis: Add Sysbus TPM-TIS device test
  test: tpm-tis: Get prepared to share tests between ISA and sysbus devices
  test: tpm: pass optional machine options to swtpm test functions
  docs/specs/tpm: Document TPM_TIS sysbus device for ARM
  hw/arm/virt: vTPM support
  tpm: Add the SysBus TPM TIS device
  tpm: Separate TPM_TIS and TPM_TIS_ISA configs
  tpm: Separate tpm_tis common functions from isa code
  tpm: Use TPMState as a common struct
  tpm: rename TPM_TIS into TPM_TIS_ISA

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