I tested my BCM94224HMS and FakePCIID. It does not work...
Test 1.
BCM94224HMS, OS X 10.10.3, model=MacBookAir5,2.
Wi-Fi work natively.
In attach: test1.png, test1.ioreg
Test 2.
BCM94224HMS, OS X 10.10.3, model=MacBookAir5,2 + FakePCIID
Wi-Fi work natively. Airport branding - not...