Revert "Updated DS2746 battery driver".
This reverts commit dcf0e7602a2515d6d21d18d4dda71c9c9ec17b84.
Revert "bcmdhd: allow only unicast packets when screen is off".
That patch prevents Wifi from working.
This reverts commit d565a9714631d5702c59579a926a3b9a8cc92b32.