iwlwifi / rtw88: re-attach to build after updates

While the build-breaking changes were only in a smaller window
further updates restored some functionality as well. Now that
we are done, add iwlwifi back to the build.

Sponsored by: The FreeBSD Foundation

This also adds the (updated) rtw88 driver back to the build.
Functionality has not been tested (much) so might not currently
work but people offered to test.

(cherry picked from commit af6aaa90057d75644c41527acc903082104e4114)
(cherry picked from commit 299e2d5724c2bc4929b6eac3258f04055e97992e)