demux: avi: do not set up invalid bitsperpixel

UINT16_MAX is set and propagated from the bitmap header reader

refs #28661

modules/demux/avi/avi.c

@@ -737,7 +737,8 @@ static int Open( vlc_object_t * p_this )
                 tk->fmt.video.i_width  = p_bih->biWidth;
                 tk->fmt.video.i_visible_height =
                 tk->fmt.video.i_height = p_bih->biHeight;
-                tk->fmt.video.i_bits_per_pixel = p_bih->biBitCount;
+                if( p_bih->biBitCount <= 32 )
+                    tk->fmt.video.i_bits_per_pixel = p_bih->biBitCount;
                 tk->fmt.video.i_frame_rate = tk->i_rate;
                 tk->fmt.video.i_frame_rate_base = tk->i_scale;