Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-06-16' into...

Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-06-16' into staging

* Latest fuzzer patches from Alexander
* Fixes for the qtest bios-tables-test
* LGPL information cleanup in qtest code
* sh4 acceptance test
* Improved submodule handling for the s390x CI test

# gpg: Signature made Tue 16 Jun 2020 08:56:10 BST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/pull-request-2020-06-16:
  configure: Let SLOF be initialized by ./scripts/git-submodule.sh
  tests/acceptance: Add boot tests for sh4 QEMU advent calendar image
  tests/qtest: Fix LGPL information in the file headers
  fuzz: add oss-fuzz build-script
  fuzz: Add support for logging QTest commands
  fuzz: skip QTest serialization
  bios-tables-test: Fix "-tpmdev: invalid option"

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