staging: brcm80211: deleted brcmsmac/cfg.h and brcmsmac/bsscfg.h

Code cleanup. Moved used sections to other source files.

Signed-off-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>