feature: wifi: Allow to set regulation setting (country-code)

We was missing the firmware required for this, and for this to work
cfg80211 needs to be as module since the rootfs is not loaded when it
is loaded if compiled in kernel.

And add iw since it very useful for debugging.

Author: mattiaswal

package/feature-wifi/Config.in

@@ -5,6 +5,8 @@ config BR2_PACKAGE_FEATURE_WIFI
 	select BR2_PACKAGE_WPA_SUPPLICANT_DEBUG_SYSLOG
 	select BR2_PACKAGE_WPA_SUPPLICANT_AUTOSCAN
 	select BR2_PACKAGE_WPA_SUPPLICANT_CLI
+	select BR2_PACKAGE_WIRELESS_REGDB
+	select BR2_PACKAGE_IW
 	help
 	  Enables WiFi in Infix. Enables all requried applications.
 

package/feature-wifi/feature-wifi.mk

@@ -10,8 +10,9 @@ FEATURE_WIFI_PACKAGE_LICENSE = MIT
 define FEATURE_WIFI_LINUX_CONFIG_FIXUPS
 	$(call KCONFIG_ENABLE_OPT,CONFIG_WLAN)
 	$(call KCONFIG_ENABLE_OPT,CONFIG_RFKILL)
-	$(call KCONFIG_ENABLE_OPT,CONFIG_MAC80211)
-	$(call KCONFIG_ENABLE_OPT,CONFIG_CFG80211)
+	$(call KCONFIG_SET_OPT,CONFIG_MAC80211,m)
+	$(call KCONFIG_SET_OPT,CONFIG_CFG80211,m)
+
 	$(if $(filter y,$(BR2_PACKAGE_FEATURE_WIFI_DONGLE_REALTEK)),
 		$(call KCONFIG_ENABLE_OPT,CONFIG_WLAN_VENDOR_REALTEK)
 		$(call KCONFIG_ENABLE_OPT,CONFIG_RTW88)