Revert "dopinder: Don't explicitly include rule for wpa_supplicant.conf"
This reverts commit
235ca2b4d1ab2d57eae89fcce61884502d0015cb.
Reason for revert: This was only included due to a typo in a /different/ device tree -_-
Change-Id: Id0a1d67a7c7810a6e253664f43be7e0a96739b12