windows: Ignore duplicate adapter names

[prgmitchell]

Description

Prevent the "Wrong GPU" message when both adapters are the same.

Motivation and Context

Saw this log was triggering the error message: https://obsproject.com/logs/BaZPLgfCwGAtNWc9

How Has This Been Tested?

Tested the log above to confirm it is resolved along with a few logs where the message should still show up like this one: https://obsproject.com/logs/StrpkEaUZ2OzKHqQ

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• [x] My code has been run through clang-format.
• [x] I have read the contributing document.
• [x] My code is not on the master branch.
• [x] The code has been tested.
• [x] All commit messages are properly formatted and commits squashed where appropriate.
• [x] I have included updates to all appropriate documentation.