Add missing imx-gst1.0-plugin dependency (vpudec filter).

Change-Id: I64d1293bd330a0b06d92ff6ad2250d1721a224f7
diff --git a/debian/control b/debian/control
index 6e7ad09..e1a6b9f 100644
--- a/debian/control
+++ b/debian/control
@@ -10,6 +10,7 @@
 Architecture: all
 Depends: ${misc:Depends},
          ${python3:Depends},
+         imx-gst1.0-plugin,
          gstreamer1.0-plugins-bad,
          gstreamer1.0-plugins-good,
          gstreamer1.0-plugins-ugly,