Adds missing exception handling in resize and rebuild servers API

Adds handling of NoValidHost and AutoDiskConfigDisabledByImage in
resize and rebuild of the V3 servers API. This has already been
fixed in the V2 API.

Change-Id: I5a5519f87bb220d6821e959f36dc5b36ffe9cc2d
Merge "Adds missing exception handling in resize and rebuild servers API"