Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210802' into...

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210802' into staging

target-arm queue:
 * Add documentation of Arm 'mainstone', 'kzm', 'imx25-pdk' boards
 * MAINTAINERS: Don't list Andrzej Zaborowski for various components
 * docs: Remove stale TODO comments about license and version
 * docs: Move licence/copyright from HTML output to rST comments
 * docs: Format literal text correctly
 * hw/arm/boot: Report error if there is no fw_cfg device in the machine
 * docs: rSTify barrier.txt and bootindex.txt

# gpg: Signature made Mon 02 Aug 2021 12:57:31 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20210802: (21 commits)
  docs: Move user-facing barrier docs into system manual
  ui/input-barrier: Move TODOs from barrier.txt to a comment
  docs: Move the protocol part of barrier.txt into interop
  docs: Move bootindex.txt into system section and rstify
  hw/arm/boot: Report error if there is no fw_cfg device in the machine
  docs/tools/virtiofsd.rst: Delete stray backtick
  docs/about/removed-features: Fix markup error
  docs: Format literals correctly
  docs/system/arm/cpu-features.rst: Format literals correctly
  docs/system/s390x/protvirt.rst: Format literals correctly
  docs/devel: Format literals correctly
  docs/devel/migration.rst: Format literals correctly
  docs/devel/ebpf_rss.rst: Format literals correctly
  docs/devel/build-system.rst: Correct typo in example code
  docs/devel/build-system.rst: Format literals correctly
  docs: Move licence/copyright from HTML output to rST comments
  docs: Remove stale TODO comments about license and version
  MAINTAINERS: Don't list Andrzej Zaborowski for various components
  docs: Add documentation of Arm 'imx25-pdk' board
  docs: Add documentation of Arm 'kzm' board
  ...

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