wireless: fix CFG80211_WEXT build problems

Fix CFG80211_WEXT build dependencies/errors:

ERROR: "cfg80211_wext_siwscan" [drivers/net/wireless/orinoco/orinoco.ko] undefined!
ERROR: "cfg80211_wext_siwmode" [drivers/net/wireless/orinoco/orinoco.ko] undefined!
ERROR: "cfg80211_wext_giwrange" [drivers/net/wireless/orinoco/orinoco.ko] undefined!
ERROR: "cfg80211_wext_giwmode" [drivers/net/wireless/orinoco/orinoco.ko] undefined!
ERROR: "cfg80211_wext_giwname" [drivers/net/wireless/orinoco/orinoco.ko] undefined!
ERROR: "cfg80211_wext_giwscan" [drivers/net/wireless/orinoco/orinoco.ko] undefined!
ERROR: "cfg80211_wext_giwname" [drivers/net/wireless/ipw2x00/ipw2200.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/orinoco/Kconfig b/drivers/net/wireless/orinoco/Kconfig
index 13b03b3..dce6520 100644
--- a/drivers/net/wireless/orinoco/Kconfig
+++ b/drivers/net/wireless/orinoco/Kconfig
@@ -1,7 +1,7 @@
 config HERMES
 	tristate "Hermes chipset 802.11b support (Orinoco/Prism2/Symbol)"
 	depends on (PPC_PMAC || PCI || PCMCIA) && WLAN_80211
-	depends on CFG80211
+	depends on CFG80211 && CFG80211_WEXT
 	select WIRELESS_EXT
 	select WEXT_SPY
 	select WEXT_PRIV