Staging: RT2860: Fixed all warnings and errors in the iface directory

I have cleaned both files inside the iface directory (fileo rtmp_pci.h
and rtmp_usb.h). I am not sure about some of the changes I have made
however my adjustments have solved all errors.  There were also a few
issues on my machine with ap.h on my machine, however I have since
cleaned that too.

Signed-off-by: Neil Munro <neilmunro@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>