build: miniupnpc 2.2.2
Summary:
Creating the dll subdir is no-longer required. We can also drop our wingen patch.
Backport of core#20421.
Test Plan: Run the GUIX builds.
Reviewers: #bitcoin_abc, PiRK
Reviewed By: #bitcoin_abc, PiRK
Differential Revision: https://reviews.bitcoinabc.org/D16562