Update path-description data for temp service list

Update path-description data for temp service list

- When a temp-service is created, the temp-service list should
  indicate the transport assigment details.
- Using path description data of the temp-service, update
  transport assignment details such as min-freq, max-freq,
  spectral-width and central-frquency.

Change-Id: If59a863eee3cd5419ee97490fee8fbfde6ab18cd
Signed-off-by: Balagangadhar (Bala) Bathula <bb4341@att.com>