v4l2videodec: workaround for v4l2 driver multi-plane.

workaround for v4l2 driver don't anounce to support multi-plane
format but the memory is multi-plane.

Signed-off-by: Song Bing <bing.song@nxp.com>
diff --git a/sys/v4l2/gstv4l2object.c b/sys/v4l2/gstv4l2object.c
index e6a605a..375c8b6 100755
--- a/sys/v4l2/gstv4l2object.c
+++ b/sys/v4l2/gstv4l2object.c
@@ -1876,7 +1876,7 @@
 
   if (fmt == NULL) {
     fmt = gst_v4l2_object_get_format_from_fourcc (v4l2object, fourcc);
-    v4l2object->prefered_non_contiguous = FALSE;
+    v4l2object->prefered_non_contiguous = TRUE;
   }
 
   if (fmt == NULL)