No support for A band/5 Ghz channels

[charliebabbitt1988]

When I try to use pcapy.open_live, I don't seem to get any channels in the A band. I can get data from the b/g bands fine, but nothing in the 5 Ghz A band.

I have tested this with both the AWUS1900 (8814au driver) and the AWUS036ACH (8812au driver). They can both get data okay on the 2.4 Ghz channels (1-14) when using "pcapy.open_live(interface_name, 1514, 1, 0)", but no channels above the top end of b/g.

I know the driver can get data on the A band channels because airodump-ng works fine.

Can support for the A band channels be added to pcapy?