[media] Staging: dt3155v4l: update to newer API

I changed the function definitions for dt3155_queue_setup() to match the
newer API.  The dt3155_start_streaming() function didn't do anything so
I just removed it.

This silences the following gcc warnings:
drivers/staging/media/dt3155v4l/dt3155v4l.c:307:2: warning: initialization from incompatible pointer type [enabled by default]
drivers/staging/media/dt3155v4l/dt3155v4l.c:307:2: warning: (near initialization for ‘q_ops.queue_setup’) [enabled by default]
drivers/staging/media/dt3155v4l/dt3155v4l.c:311:2: warning: initialization from incompatible pointer type [enabled by default]
drivers/staging/media/dt3155v4l/dt3155v4l.c:311:2: warning: (near initialization for ‘q_ops.start_streaming’) [enabled by default]

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/staging/media/dt3155v4l/dt3155v4l.c

@@ -218,9 +218,10 @@ dt3155_start_acq(struct dt3155_priv *pd)
  *	driver-specific callbacks (vb2_ops)
  */
 static int
-dt3155_queue_setup(struct vb2_queue *q, unsigned int *num_buffers,
-			unsigned int *num_planes, unsigned long sizes[],
-						void *alloc_ctxs[])
+dt3155_queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
+		unsigned int *num_buffers, unsigned int *num_planes,
+		unsigned int sizes[], void *alloc_ctxs[])
+
 {
 	struct dt3155_priv *pd = vb2_get_drv_priv(q);
 	void *ret;
@@ -261,12 +262,6 @@ dt3155_buf_prepare(struct vb2_buffer *vb)
 	return 0;
 }
 
-static int
-dt3155_start_streaming(struct vb2_queue *q)
-{
-	return 0;
-}
-
 static int
 dt3155_stop_streaming(struct vb2_queue *q)
 {
@@ -308,7 +303,6 @@ const struct vb2_ops q_ops = {
 	.wait_prepare = dt3155_wait_prepare,
 	.wait_finish = dt3155_wait_finish,
 	.buf_prepare = dt3155_buf_prepare,
-	.start_streaming = dt3155_start_streaming,
 	.stop_streaming = dt3155_stop_streaming,
 	.buf_queue = dt3155_buf_queue,
 };