media: AV1: Make sure that bit depth in correctly initialize

Make sure that bit_depth field of V4L2_CTRL_TYPE_AV1_SEQUENCE
is initialized correctly before using it.

Signed-off-by: Benjamin Gaignard <[e-mail]>
Reviewed-by: Nicolas Dufresne <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/v4l2-core/v4l2-ctrls-core.c

···
 	struct v4l2_ctrl_vp9_frame *p_vp9_frame;
 	struct v4l2_ctrl_fwht_params *p_fwht_params;
 	struct v4l2_ctrl_h264_scaling_matrix *p_h264_scaling_matrix;
+	struct v4l2_ctrl_av1_sequence *p_av1_sequence;
 	void *p = ptr.p + idx * ctrl->elem_size;
 
 	if (ctrl->p_def.p_const)
···
 		p_vp9_frame->bit_depth = 8;
 		p_vp9_frame->flags |= V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING |
 			V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING;
+		break;
+	case V4L2_CTRL_TYPE_AV1_SEQUENCE:
+		p_av1_sequence = p;
+		p_av1_sequence->bit_depth = 8;
 		break;
 	case V4L2_CTRL_TYPE_FWHT_PARAMS:
 		p_fwht_params = p;