kernel: usb: kmod-usb-audio: Fix dependency

Change the dependency on the kmod-media-controller from depends to
select.

Fixes: 109592524663 ("kernel: add kmod-media-controller dependency for kmod-usb-audio")
Link: https://github.com/openwrt/openwrt/pull/17058
Signed-off-by: Hauke Mehrtens <[email protected]>

package/kernel/linux/modules/usb.mk

@@ -576,7 +576,7 @@ define KernelPackage/usb-audio
 	CONFIG_SND_USB_AUDIO
   $(call AddDepends/usb)
   $(call AddDepends/sound)
-  DEPENDS+=kmod-media-controller
+  DEPENDS+=+kmod-media-controller
   FILES:= \
 	$(LINUX_DIR)/sound/usb/snd-usbmidi-lib.ko \
 	$(LINUX_DIR)/sound/usb/snd-usb-audio.ko