fix(Makefile): add missing conffiles

Signed-off-by: Tianling Shen <[email protected]>

Makefile

@@ -16,6 +16,10 @@ PKG_RELEASE:=1
 
 PKG_MAINTAINER:=Tianling Shen <[email protected]>
 
+define Package/luci-app-unblockneteasemusic/conffiles
+/etc/config/unblockneteasemusic
+endef
+
 include $(TOPDIR)/feeds/luci/luci.mk
 
 # call BuildPackage - OpenWrt buildroot signature