gallium: add PIPE_CAP_TGSI_MUL_ZERO_WINS

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Axel Davy <axel.davy@ens.fr>
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index a309fe7..8d67f09 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -423,6 +423,7 @@
    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
    case PIPE_CAP_TGSI_FS_FBFETCH:
+   case PIPE_CAP_TGSI_MUL_ZERO_WINS:
       return 0;
    }