Libertas SDIO 88w8686 with iPhone

[David Wang]

Thanks for the reply, Cyril. It turned out that my problem was
actually a bug in my code to set the MAC and BBP registers. Once I
properly duplicated the settings the iPhone OS uses for the MAC, BBP,
and RF registers, the tx signal strength became normal. It looks like
the Libertas driver works perfectly for the iPhone. :)

Thanks everyone for their work on this driver!

David