iwlwifi: move bcast_sta_id init to common routine

There is nothing device specific in the initialization of the
bcast_sta_id so move it to the common inititalization routine.

Signed-off-by: Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
5 files changed