Consider identical display models in ControlConfig

Summary:
Load the correct control information in configurations with identical
displays having the same EDID data by checking additionally the names
of the displays, which are supposed to contain information about the
connectors being used.

Test Plan: Compiles. Auto test passes.

Reviewers: Plasma

Subscribers: mart, plasma-devel

Tags: Plasma

Maniphest Tasks: T10028

Differential Revision: https://phabricator.kde.org/D16995