staging: brcm80211: making wiphy object accessible from wlc and phy

staging: brcm80211: making wiphy object accessible from wlc and phy

Next commits will replace WL_ERROR and friends with BCMMSG. Because
this new message log function require a wiphy object, device object pointers
have been added to three data structures.

Cc: devel@linuxdriverproject.org
Cc: linux-wireless@vger.kernel.org
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Henry Ptasinski <henryp@broadcom.com>
Cc: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>