Fix platformsocketengine test failures

Fix platformsocketengine test failures

The platformsocketengine autotest uses the native socket engine directly
rather than through QAbstractSocket. The bind tests were failing because
the autotest was creating a socket with IPv4 (AF_INET) and then binding
with QHostAddress::Any (AF_INET6).
A linux kernel update caused this to start failing on the test machines.

Change-Id: Iea62f3d56dbfb35fcb952dcf00313578eb2bd764
Reviewed-by: Peter Hartmann <peter.hartmann@nokia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>