media: am437x-vpfe: fix start streaming error path

When start_streaming fails the h/w module might be left enabled
inadvertently. Make sure it is disabled in the error path.
Signed-off-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/am437x/am437x-vpfe.c

@@ -2008,6 +2008,7 @@ static int vpfe_start_streaming(struct vb2_queue *vq, unsigned int count)
 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
 	}
 
+	vpfe_pcr_enable(&vpfe->ccdc, 0);
 	return ret;
 }