staging: wilc1000: add wilc to netdev private data structure

This patch add wilc to struct perInterface_wlan_t which is netdev private
data to access wilc via netdev_priv function. Assign wilc to nic->wilc.
The global variable g_linux_wlan will be replaced with netdev private data
member wilc step by step.
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Tony Cho <tony.cho@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/linux_wlan.c

@@ -1662,6 +1662,7 @@ int wilc_netdev_init(struct wilc **wilc)
 
 		nic->u8IfIdx = g_linux_wlan->vif_num;
 		nic->wilc_netdev = ndev;
+		nic->wilc = *wilc;
 		g_linux_wlan->vif[g_linux_wlan->vif_num].ndev = ndev;
 		g_linux_wlan->vif_num++;
 		ndev->netdev_ops = &wilc_netdev_ops;

drivers/staging/wilc1000/wilc_wfi_netdevice.h

@@ -199,7 +199,7 @@ typedef struct {
 	struct_frame_reg g_struct_frame_reg[num_reg_frame];
 	struct net_device *wilc_netdev;
 	struct net_device_stats netstats;
-
+	struct wilc *wilc;
 } perInterface_wlan_t;
 
 struct WILC_WFI_mon_priv {