staging/bcm2835-codec: Implement additional g_selection calls for decode

v4l_cropcap calls our vidioc_g_pixelaspect function to get the pixel
aspect ratio, but also calls g_selection for V4L2_SEL_TGT_CROP_BOUNDS
and V4L2_SEL_TGT_CROP_DEFAULT. Whilst it allows for vidioc_g_pixelaspect
not to be implemented, it doesn't allow for either of the other two.

Add in support for the additional selection targets.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c

@@ -1517,6 +1517,14 @@ static int vidioc_g_selection(struct file *file, void *priv,
 			s->r.width = q_data->crop_width;
 			s->r.height = q_data->crop_height;
 			break;
+		case V4L2_SEL_TGT_CROP_BOUNDS:
+		case V4L2_SEL_TGT_CROP_DEFAULT:
+			s->r.left = 0;
+			s->r.top = 0;
+			s->r.width = (q_data->bytesperline << 3) /
+						q_data->fmt->depth;
+			s->r.height = q_data->height;
+			break;
 		default:
 			return -EINVAL;
 		}