rt2x00: Fix build errors due to modularized rfkill or leds and built-in rt2x00.

Fix by disabling rt2x00 rfkill support when rt2x00 is built-in and rfkill has been modularized, and
a similar scheme for the relationship between leds_class and rt2x00..
Also, give a warning to the end-user when rfkill-/leds-support is disabled this way, so that the
end-user has at least some clues on what is going on.

Proper fixing required some general updates of the Kconfig-structure for the rt2x00 driver, whereby
internal configuration symbols had to be moved to after the user-visible configuration symbols.
Signed-off-by: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/Kconfig

-config RT2X00
-	tristate "Ralink driver support"
+menuconfig RT2X00
+	bool "Ralink driver support"
 	depends on MAC80211 && WLAN_80211 && EXPERIMENTAL
 	---help---
 	  This will enable the experimental support for the Ralink drivers,
@@ -17,39 +17,6 @@ config RT2X00
 
 if RT2X00
 
-config RT2X00_LIB
-	tristate
-
-config RT2X00_LIB_PCI
-	tristate
-	select RT2X00_LIB
-
-config RT2X00_LIB_USB
-	tristate
-	select RT2X00_LIB
-
-config RT2X00_LIB_FIRMWARE
-	boolean
-	depends on RT2X00_LIB
-	select FW_LOADER
-
-config RT2X00_LIB_CRYPTO
-	boolean
-	depends on RT2X00_LIB
-
-config RT2X00_LIB_RFKILL
-	boolean
-	depends on RT2X00_LIB
-	depends on RFKILL
-	default y
-
-config RT2X00_LIB_LEDS
-	boolean
-	depends on RT2X00_LIB
-	depends on NEW_LEDS
-	depends on LEDS_CLASS
-	default y
-
 config RT2400PCI
 	tristate "Ralink rt2400 (PCI/PCMCIA) support"
 	depends on PCI
@@ -109,6 +76,38 @@ config RT73USB
 
 	  When compiled as a module, this driver will be called "rt73usb.ko".
 
+config RT2X00_LIB_PCI
+	tristate
+	select RT2X00_LIB
+
+config RT2X00_LIB_USB
+	tristate
+	select RT2X00_LIB
+
+config RT2X00_LIB
+	tristate
+
+config RT2X00_LIB_FIRMWARE
+	boolean
+	select FW_LOADER
+
+config RT2X00_LIB_CRYPTO
+	boolean
+
+config RT2X00_LIB_RFKILL
+	boolean
+	default y if (RT2X00_LIB=y && RFKILL=y) || (RT2X00_LIB=m && RFKILL!=n)
+
+comment "rt2x00 rfkill support disabled due to modularized RFKILL and built-in rt2x00"
+	depends on RT2X00_LIB=y && RFKILL=m
+
+config RT2X00_LIB_LEDS
+	boolean
+	default y if (RT2X00_LIB=y && LEDS_CLASS=y) || (RT2X00_LIB=m && LEDS_CLASS!=n)
+
+comment "rt2x00 leds support disabled due to modularized LEDS_CLASS and built-in rt2x00"
+	depends on RT2X00_LIB=y && LEDS_CLASS=m
+
 config RT2X00_LIB_DEBUGFS
 	bool "Ralink debugfs support"
 	depends on RT2X00_LIB && MAC80211_DEBUGFS