net: Backport from samsung msm8660

Change-Id: I4c84a1ae2c04356f4be6bff7bb452c6faf59ae07
presto: add bcmdhd driver for presto

Change-Id: I8b07541dca54013a2e24c2cee697340ff0f4248b
bcmdhd:presto: read and apply correct mac-address

Change-Id: Ib0b41ace2c4fea7873bdef4edb91873a0efb240c
presto: adadpt bcmdhd driver for presto

Change-Id: Ib6f20c2e5a3c700816d10f5f8b3fab220561cce2