iwlwifi: add struct iwl_cfg

This patch introduces struct iwl_cfg. struct iwl_cfg defines static
configuration for each device type and sku. It is passed as driver_data
to the bus probe function.
This patch also introduce new common header file iwl-core.h
which will represent core functionality of iwlwifi driver

3945ABG uses separate iwl-3945-dev.h header file for now

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.h b/drivers/net/wireless/iwlwifi/iwl-4965.h
index a782c45..0bfd1b4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.h
@@ -967,6 +967,7 @@
 	struct ieee80211_hw *hw;
 	struct ieee80211_channel *ieee_channels;
 	struct ieee80211_rate *ieee_rates;
+	struct iwl_cfg *cfg;
 
 	/* temporary frame storage list */
 	struct list_head free_frames;
@@ -1126,7 +1127,6 @@
 	int is_open;
 
 	u8 mac80211_registered;
-	int is_abg;
 
 	u32 notif_missed_beacons;