[WIRELESS]: Refactor wireless Kconfig.

This patch refactors the wireless Kconfig all over and already
introduces net/wireless/Kconfig with just the WEXT bit for now,
the cfg80211 patch will add to that as well.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ieee80211/Kconfig b/net/ieee80211/Kconfig
index 6ef766e..1438aded 100644
--- a/net/ieee80211/Kconfig
+++ b/net/ieee80211/Kconfig
@@ -56,7 +56,8 @@
 
 config IEEE80211_CRYPT_TKIP
 	tristate "IEEE 802.11i TKIP encryption"
-	depends on IEEE80211 && NET_RADIO
+	depends on IEEE80211
+	select WIRELESS_EXT
 	select CRYPTO
 	select CRYPTO_MICHAEL_MIC
 	select CRYPTO_ECB