omxh264dec: remove 'parsed=true' from sink pad
omxh264dec: remove 'parsed=true' from sink pad

The decoder only requires to receive one frame per buffer which is
already enforced with 'alignment=au'. There is no need to require to
have a parser upstream.

Allow to run "encode ! decode" pipeline without having a parser.

https://bugzilla.gnome.org/show_bug.cgi?id=784344

CapOM/gst-omx,CapOM/gst-omx,GStreamer/gst-omx,GStreamer/gst-omx,GStreamer/gst-omx,CapOM/gst-omx