Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2020-09-12-tag' into staging

patch queue for qemu-ga

* add guest-get-devices for reporting virtio devices (w32-only)
* extend guest-get-fsinfo to support non-PCI virtio disk controllers

# gpg: Signature made Mon 14 Sep 2020 02:53:51 BST
# gpg:                using RSA key CEACC9E15534EBABB82D3FA03353C9CEF108B584
# gpg:                issuer "mdroth@linux.vnet.ibm.com"
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>" [full]
# gpg:                 aka "Michael Roth <mdroth@utexas.edu>" [full]
# gpg:                 aka "Michael Roth <mdroth@linux.vnet.ibm.com>" [full]
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D  3FA0 3353 C9CE F108 B584

* remotes/mdroth/tags/qga-pull-2020-09-12-tag:
  qga: add command guest-get-devices for reporting VirtIO devices
  qga/commands-posix: Support fsinfo for non-PCI virtio devices, too
  qga/commands-posix: Move the udev code from the pci to the generic function
  qga/commands-posix: Rework build_guest_fsinfo_for_real_device() function

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