iwlwifi: make IWLWIFI depend on CFG80211

Since IWLWIFI doesn't depend on MAC80211 anymore, it needs to depend
on CFG80211, because it uses a few symbols from it.  Add the
dependency on CFG80211 accordingly.

Additionally, make IWLWIFI_LEDS depend on IWLMVM or IWLDVM, since it
doesn't need mac80211 but must be used for these.

Fixes: aca432f0 ("iwlwifi: make MVM and DVM depend on MAC80211")
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/intel/iwlwifi/Kconfig

 config IWLWIFI
 	tristate "Intel Wireless WiFi Next Gen AGN - Wireless-N/Advanced-N/Ultimate-N (iwlwifi) "
-	depends on PCI && HAS_IOMEM
+	depends on PCI && HAS_IOMEM && CFG80211
 	select FW_LOADER
 	---help---
 	  Select to build the driver supporting the:
@@ -47,6 +47,7 @@ if IWLWIFI
 config IWLWIFI_LEDS
 	bool
 	depends on LEDS_CLASS=y || LEDS_CLASS=IWLWIFI
+	depends on IWLMVM || IWLDVM
 	select LEDS_TRIGGERS
 	select MAC80211_LEDS
 	default y