devd: Add rtw to wireless list

rtw88 and rtw89 are coming soon, so add them here now

Approved by: re@ (gjb)
Sponsored by: Netflix
MFC After: 1 day

(cherry picked from commit dea368bc5e7905e7456b052c545dcfd935341083)
(cherry picked from commit cba6eb5d31e825cbf6e8694b5a934db75d380fc4)