activate httpd output plugin for mpdbox

target/packages/pkg-available/mpdbox

@@ -16,6 +16,7 @@ config ADK_PKG_MPDBOX
 	select ADK_PACKAGE_MPD_WITH_SHOUT
 	select ADK_PACKAGE_MPD_WITH_CURL
 	select ADK_PACKAGE_MPD_WITH_SAMPLERATE
+	select ADK_PACKAGE_MPD_WITH_HTTPD
 	select ADK_PACKAGE_FILE
 	select ADK_PACKAGE_FFMPEG
 	select ADK_PACKAGE_FFPROBE