base-files: fix feed list in PKG_CONFIG_DEPENDS

FEEDS_ENABLED and FEEDS_DISABLED are derived from FEEDS_AVAILABLE, not
FEEDS_INSTALLED.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

package/base-files/Makefile

@@ -27,7 +27,7 @@ PKG_CONFIG_DEPENDS += \
 	CONFIG_PER_FEED_REPO \
 	CONFIG_PER_FEED_REPO_ADD_DISABLED \
 	CONFIG_PER_FEED_REPO_ADD_COMMENTED \
-	$(foreach feed,$(FEEDS_INSTALLED),CONFIG_FEED_$(feed))
+	$(foreach feed,$(FEEDS_AVAILABLE),CONFIG_FEED_$(feed))
 
 include $(INCLUDE_DIR)/package.mk