tests/docker: add podman support
# gpg: Signature made Thu 22 Aug 2019 14:46:51 BST
# gpg: using RSA key
87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5
* remotes/elmarco/tags/podman-pull-request:
test: skip tests if socket_check_protocol_support() failed
test-char: skip tcp tests if ipv4 check failed
tests: specify the address family when checking bind
tests/docker: add podman support
docker.py: add podman support
docker.py: add --run-as-current-user
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>