[Piglit] [PATCH] ext_image_dma_buf_import/sample_rgb: Make sure the window has alpha.

[Chad Versace]

On Mon 18 Apr 2016, Eric Anholt wrote:
> Fixes test result in non-auto-fbo mode on Intel, where you end up
> without an alpha channel if you forget to ask for one.
> ---
>  tests/spec/ext_image_dma_buf_import/sample_rgb.c | 1 +
>  1 file changed, 1 insertion(+)

This fixes `bin/ext_image_dma_buf_import-sample_rgb -fmt=XR24 -alpha-one
-auto` for me.

Reviewed-by: Chad Versace <chad.versace at intel.com>