devd: correct wifi regexp

Correct the wifi regexp to include iwlwifi and remove wi driver that was
has been retired.

Approved by: re@ (gjb)
Sponsored by: Netflix

(cherry picked from commit e0ab0ff104cb0e817d47a1a2a235f915ec1a31f4)
(cherry picked from commit eeec49e0b30a3faf2985e27f163a4c2f7b511e7c)