Closed issue by ethragur on void-packages repository

https://github.com/void-linux/void-packages/issues/3293
Description: ### System

* system:
  Void 4.18.10_1 x86_64 AuthenticAMD uptodate hold rrrmFFFFF
  Radeon RX 570 Series (POLARIS10, DRM 3.26.0, 4.18.10_1, LLVM 6.0.1)
* package:  
  mesa-ati-dri-32bit-18.2.1_1

### Expected behavior

The x86_64 Package contains the file /usr/share/vulkan/icd.d/radeon_icd.x84_64.json, which is needed for running vulkan application.
Installing the multilib version of this package should also provide this file for 32bit. (/usr/share/vulkan/icd.d/radeon_icd.x86.json)

### Actual behavior

The multilib package (mesa-ati-dri-32bit) does not provide the file for 32bit vulkan (/usr/share/vulkan/icd.d/radeon_icd.x86.json), therefore using 32bit vulkan applications does not work out of the box.

### Steps to reproduce the behavior

Install the packages needed for 32bit vulkan: (mesa-ati-dri-32bit, vulkan-loader-32bit) and run a 32bit vulkan application (for example a 32bit windows executable with DXVK). 
![2018-10-02-091051_448x242_scrot](https://user-images.githubusercontent.com/9322165/46334133-34fdbf80-c623-11e8-8410-65fdd728de43.png)


After creating the file "/usr/share/vulkan/icd.d/radeon_icd.x86.json" with the following content:
`{
    "ICD": {
        "api_version": "1.1.70",
        "library_path": "/usr/lib32/libvulkan_radeon.so"
    },
    "file_format_version": "1.0.0"
}`
Starting the application works