mac80211: Fix dependencies of kmod-rsi91x-usb

Instead of depending on kmod-usb2 make it depend on the normal USB
dependencies. This should hopefully fix some problems seen in the build
bot builds for powerpc_8540.

In addition also activate DRIVER_11N_SUPPORT support.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/kernel/mac80211/Makefile

@@ -299,14 +299,14 @@ endef
 define KernelPackage/rsi91x
   $(call KernelPackage/mac80211/Default)
   TITLE:=Redpine Signals Inc 91x WLAN driver support
-  DEPENDS+= +kmod-mac80211 +rs9113-firmware
+  DEPENDS+= +kmod-mac80211 +rs9113-firmware +@DRIVER_11N_SUPPORT
   FILES:=$(PKG_BUILD_DIR)/drivers/net/wireless/rsi/rsi_91x.ko
 endef
 
 define KernelPackage/rsi91x-usb
   $(call KernelPackage/mac80211/Default)
   TITLE:=Redpine Signals USB bus support
-  DEPENDS+= +kmod-mac80211 +kmod-usb2 +kmod-rsi91x +rs9113-firmware
+  DEPENDS+=@USB_SUPPORT +kmod-usb-core +kmod-mac80211 +kmod-rsi91x +rs9113-firmware
   FILES:=$(PKG_BUILD_DIR)/drivers/net/wireless/rsi/rsi_usb.ko
   AUTOLOAD:=$(call AutoProbe,rsi_usb)
 endef