[Piglit] [PATCH v4] khr_texture_compression_astc: Add array tests

[Chad Versace]

On Mon 05 Oct 2015, Nanley Chery wrote:
> From: Nanley Chery <nanley.g.chery at intel.com>
> 
> These tests check that 2D texture arrays work for the 5x5 and
> 12x12 block sizes.
> 
> v2. add to all.py (Ilia).
>     create test for gles2.
> v3. upgrade required GLES version to 3.1 (for 2d array support).
> v4. Move CONFIG block to the top of the file (Chad).
> 
> Signed-off-by: Nanley Chery <nanley.g.chery at intel.com>

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