Merge remote-tracking branch 'remotes/kraxel/tags/fixes-20210726-pull-request' into...

ui: fixes for 6.1

# gpg: Signature made Mon 26 Jul 2021 12:05:33 BST
# gpg:                using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/fixes-20210726-pull-request:
  ui/gtk: add a keyboard fifo to the VTE consoles
  ui: update keycodemapdb submodule commit
  ui/cocoa: Fix the type of main's argv
  ui/egl-headless: Remove a check for CONFIG_OPENGL
  ui/spice: Use HAVE_SPICE_GL for OpenGL checks
  ui/gtk: Fix relative mouse with multiple monitors

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