cardhu: defconfig: cleanup

* Added IP_MULTICAST
* Converted modules to built-in: cfg80211, bcm4330, usb_net_raw_ip,
  usb_serial_baseband
* Removed unused bcm4329 entries
* Removed unused bcm4334 entry

Change-Id: I8f113381fc09e2461a96c08375e8da8b08a5882c