Merge remote-tracking branch 'remotes/kraxel/tags/fixes-20200724-pull-request' into...

Merge remote-tracking branch 'remotes/kraxel/tags/fixes-20200724-pull-request' into staging

bugfixes: virtio-input, usb-dwc2, pixman.

# gpg: Signature made Fri 24 Jul 2020 17:42:43 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <[email protected]>" [full]
# gpg:                 aka "Gerd Hoffmann <[email protected]>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <[email protected]>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/fixes-20200724-pull-request:
  configure: Allow to build tools without pixman
  hw/input/virtio-input-hid.c: Don't undef CONFIG_CURSES
  hw: Only compile the usb-dwc2 controller if it is really needed

Signed-off-by: Peter Maydell <[email protected]>