[PATCH 0/4] support OEQA inside container

["André Draszik" <git@andred.net>]

Hi,

With these patches it is possible to run bitbake inside a docker
container and still successfully execute the OEQA tests that require
the target to talk to a temporary http server spawned on the machine
running bitake, e.g. using crops.

This wasn't possible so far because:
* we need to map a port from outside the container into the container
  for the target to be able to reach the http server
* we need to pass the IP address of the docker host to the target,
  e.g. in the OPKG repository URL, but we can't bind the http server
  to that IP address, as the http server is running inside the container
  with a different IP address - the bind would fail

To make this work, TEST_SERVER_IP needs to be set to the IP address of
the docker host, and the port that is mapped into the container can now
also be specified in TEST_SERVER_IP, similar to TEST_TARGET_IP

Cheers,
Andre'