wl12xx: Use chipset specific join commands

Add implementation to use chipset specific join commands.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/wl12xx/cmd.c b/drivers/net/wireless/wl12xx/cmd.c
index fb4e996..cad258d 100644
--- a/drivers/net/wireless/wl12xx/cmd.c
+++ b/drivers/net/wireless/wl12xx/cmd.c
@@ -253,7 +253,7 @@
 	return ret;
 }
 
-int wl12xx_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval,
+int wl1251_cmd_join(struct wl12xx *wl, u8 bss_type, u8 dtim_interval,
 		    u16 beacon_interval, u8 wait)
 {
 	unsigned long timeout;