org.webosports.service.update: bump SRCREV

* this finally brings the system update to live. From now on it's possible to check for
  new updates through the settings application and install them. A progress animator will
  come later.

Signed-off-by: Simon Busch <morphis@gravedo.de>
webapp-launcher: add needed runtime dependency on libconnman-qt

Signed-off-by: Simon Busch <morphis@gravedo.de>