Add mdpd to excelsior-core

Enable mdpd by default.

Change-Id: I45ceb12e9f7b37e572386701a8d2687205770e39
diff --git a/debian/control b/debian/control
index d98ff5b..ce15681 100644
--- a/debian/control
+++ b/debian/control
@@ -15,6 +15,7 @@
          excelsior-wlan,
          gst-shark,
          linux-image-4.19.106-mtk,
+	 mdpd,
          mendel-core,
          mtk-board-audio,
          python3-edgetpu,