Revert "typo"

This reverts commit c90bc92d8cfee8be8577d74093227c8079b60584.
Revert some things
Revert "Fix wifi tether on new driver"

This reverts commit 4aa8c793806803eb793ae0a2a367638b5f1f930e.
Revert "Update bcmdhd driver from GT-I9505"

This reverts commit b9b606264c0ec1ad6c78b79853f64ca1a827a589.