[packages/vulkan-sdk] - do not require icd in -demos if package was build without it - rel 2

[Jacek Konieczny]

On 2016-07-02 16:40, baggins wrote:
> commit 995b0954e3734535a29e3b3888054f35bb981d39
> Author: Jan Rękorajski <baggins at pld-linux.org>
> Date:   Sat Jul 2 16:40:30 2016 +0200
> 
>     - do not require icd in -demos if package was build without it
>     - rel 2

ICD is a Vulkan driver. Demos are useles without a driver.

The ICD which could be built from the SDK sources was just a reference
own. Proper one comes with prioprietary nVidia or AMD drivers or with
Mesa 12 (for Intel).

Jacek