bcmdhd: Enable wifi mac address changing
bcmdhd: change packet filter settings to block multicast

Credits to Entropy512
bcmdhd: Disable multicast on suspend

Credits to Entropy512 and Gokhan Moral
Boeffla-Sound: Engine 1.6.5

- allow speaker minimum level of 20
Boeffla-Sound: Engine 1.6.6

- allow minimum volume of 0 for both speaker and headphones