softpipe: PIPE_CAP_TGSI_CONT_SUPPORTED query

src/gallium/drivers/softpipe/sp_screen.c

@@ -87,6 +87,8 @@ softpipe_get_param(struct pipe_screen *screen, int param)
       return 8;  /* max 128x128x128 */
    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
       return 12; /* max 2Kx2K */
+   case PIPE_CAP_TGSI_CONT_SUPPORTED:
+      return 1;
    default:
       return 0;
    }