staging: brcm80211: rename fullmac functions

The function provided by dhd_linux.c have been renamed to make
the naming throughout the driver more consistent and remove
Broadcom specific acronyms which are not meaningful.

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