staging: wlan-ng: avoid new typedef: p80211item_pstr6_t

This patch fixes the following checkpatch.pl warning in p80211types.h:
WARNING: do not add new typedefs

It applies for typedef p80211item_pstr6_t
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wlan-ng/p80211metastruct.h

@@ -68,7 +68,7 @@ struct p80211msg_dot11req_scan {
 	u32 msglen;
 	u8 devname[WLAN_DEVNAMELEN_MAX];
 	struct p80211item_uint32 bsstype;
-	p80211item_pstr6_t bssid;
+	struct p80211item_pstr6 bssid;
 	u8 pad_0C[1];
 	p80211item_pstr32_t ssid;
 	u8 pad_1D[3];
@@ -91,7 +91,7 @@ struct p80211msg_dot11req_scan_results {
 	struct p80211item_uint32 resultcode;
 	struct p80211item_uint32 signal;
 	struct p80211item_uint32 noise;
-	p80211item_pstr6_t bssid;
+	struct p80211item_pstr6 bssid;
 	u8 pad_3C[1];
 	p80211item_pstr32_t ssid;
 	u8 pad_4D[3];

drivers/staging/wlan-ng/p80211netdev.c

@@ -615,7 +615,7 @@ static int p80211knetdev_set_mac_address(netdevice_t *dev, void *addr)
 	struct sockaddr *new_addr = addr;
 	struct p80211msg_dot11req_mibset dot11req;
 	p80211item_unk392_t *mibattr;
-	p80211item_pstr6_t *macaddr;
+	struct p80211item_pstr6 *macaddr;
 	struct p80211item_uint32 *resultcode;
 	int result;
 
@@ -625,7 +625,7 @@ static int p80211knetdev_set_mac_address(netdevice_t *dev, void *addr)
 
 	/* Set up some convenience pointers. */
 	mibattr = &dot11req.mibattribute;
-	macaddr = (p80211item_pstr6_t *)&mibattr->data;
+	macaddr = (struct p80211item_pstr6 *)&mibattr->data;
 	resultcode = &dot11req.resultcode;
 
 	/* Set up a dot11req_mibset */

drivers/staging/wlan-ng/p80211types.h

@@ -278,12 +278,12 @@ struct p80211item_uint32 {
 } __packed;
 
 /* message data item for OCTETSTR, DISPLAYSTR */
-typedef struct p80211item_pstr6 {
+struct p80211item_pstr6 {
 	u32 did;
 	u16 status;
 	u16 len;
 	struct p80211pstr6 data;
-} __packed p80211item_pstr6_t;
+} __packed;
 
 /* message data item for OCTETSTR, DISPLAYSTR */
 typedef struct p80211item_pstr14 {