Update ofono backend

The dbus path has since changed, and I missed this when I
updated.

upstream  Change-Id: Iea3363b276a92f4a97d1ddfbae572515abac9417
prefer to use wifi over others
just use connman to connect to cellular services
update the network configuration list when changes in the networks
happen.
Merge branch 'master' of github.com:lpotter/qtbase
Revert "prefer to use wifi over others"

This reverts commit bb9a23bba2776e487dce004c02f282fe3a58357f.