Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2018-07-16-tag' into staging

Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2018-07-16-tag' into staging

qemu-ga patch queue for hard-freeze

* fix file descriptor leak in suspend command
* fix leak in guest-get-fsinfo

# gpg: Signature made Mon 16 Jul 2018 22:41:41 BST
# gpg:                using RSA key 3353C9CEF108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>"
# gpg:                 aka "Michael Roth <mdroth@utexas.edu>"
# gpg:                 aka "Michael Roth <mdroth@linux.vnet.ibm.com>"
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D  3FA0 3353 C9CE F108 B584

* remotes/mdroth/tags/qga-pull-2018-07-16-tag:
  qga: fix file descriptor leak
  qga: fix 'driver' leak in guest-get-fsinfo

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