wireless: switch to bcmdhd (google)

-use firmware from i9100
-add WiFiDirectDemo
Update

Change-Id: Ia3439d5fdcc906ef18e2420b507cc98a651d3d30
Clean-up

Change-Id: I77cb9ff22e16003b7b71698dbcf035ae42729596
Merge branch 'cm-10.1' of git://github.com/beegee-tokyo/android_device_samsung_p4-common into cm-10.1