tmf: Update the suspend and resume handling of requests

tmf: Update the suspend and resume handling of requests

The new implementation handles the event before suspending the thread
requested by the request executor. In the previous implementation the
thread is suspended before handleData() which causes unnecessary
handling of data if the request is canceled during the time the
thread is suspended.

Change-Id: I25e143db734ebf524630651e4ac779a7b4657e6a
Signed-off-by: Bernd Hufmann <Bernd.Hufmann@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/18045
Reviewed-by: Patrick Tasse <patrick.tasse@gmail.com>
IP-Clean: Patrick Tasse <patrick.tasse@gmail.com>
Tested-by: Hudson CI
Reviewed-by: Bernd Hufmann <bernd.hufmann@ericsson.com>
IP-Clean: Bernd Hufmann <bernd.hufmann@ericsson.com>
Tested-by: Bernd Hufmann <bernd.hufmann@ericsson.com>