Sometimes, the fixed_network value gets rendered as UUID. However OCCM's
internal-network-name requires the network name, it does not support
UUID. This patch introduces a new parameter called fixed_network_name
which converts fixed_network UUID to name if it is UUID-like.
Story: 2005333
Task: 36313
Change-Id: I3453bc0dbea285687d39c9782685cb1f2a3ecd39