WCN3680 support

[Jason Mobarak]

Hello--

What work is required to support the WCN3680?  I have seen that
WCN3680 support is planned, but not much on the details of what's
needed.

The header "dxe.h" mentions some hard coded values ("TODO This must
calculated properly but not hardcoded")-- is this related to
supporting WCN3680?

Is it possible for someone other than Eugene to add support? :-)

Thanks,
-Jason M