staging: brcm80211: fix checkpatch warning in fullmac

Fix the __aligned checkpatch warning in wl_cfg80211.h
Reviewed-by: NRoland Vossen <rvossen@broadcom.com>
Reviewed-by: NHenry Ptasinski <henryp@broadcom.com>
Signed-off-by: NArend van Spriel <arend@broadcom.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h

@@ -317,7 +317,7 @@ struct brcmf_cfg80211_priv {
 	u8 *ioctl_buf;	/* ioctl buffer */
 	u8 *extra_buf;	/* maily to grab assoc information */
 	struct dentry *debugfsdir;
-	u8 ci[0] __attribute__ ((__aligned__(NETDEV_ALIGN)));
+	u8 ci[0] __aligned(NETDEV_ALIGN);
 };
 
 #define cfg_to_wiphy(w) (w->wdev->wiphy)