Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-07-21' into...

Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-07-21' into staging

* Fix memory leak in fuzzer
* Fuzzer documentation updates
* Some other minor fuzzer updates
* Fix "make check-qtest SPEED=slow" (bug in msf2 instance_init)

# gpg: Signature made Tue 21 Jul 2020 07:48:10 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-2020-07-21:
  hw: Mark nd_table[] misuse in realize methods FIXME
  msf2: Unbreak device-list-properties for "msf-soc"
  MAINTAINERS: Extend the device fuzzing section
  docs/fuzz: add instructions for generating a coverage report
  docs/fuzz: add information about useful libFuzzer flags
  docs/fuzz: describe building fuzzers with enable-sanitizers
  fuzz: build without AddressSanitizer, by default
  gitlab-ci.yml: Add oss-fuzz build tests
  fuzz: Fix leak when assembling datadir path string
  scripts/oss-fuzz: Limit target list to i386-softmmu

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