There's a merged pull request on the void-packages repository

iwd: update to 1.15.
https://github.com/void-linux/void-packages/pull/31443

Description:
[Changelog](https://git.kernel.org/pub/scm/network/wireless/iwd.git/commit/?id=6d47354e630f770c25b635ae80818ee4d37c050c):
```
Add support for FT-over-DS procedure with multiple BSS.
Add support for estimation of VHT RX data rate.
Add support for exporting Daemon information.
```

<!-- Mark items with [x] where applicable -->

#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [x] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR

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#### Does it build and run successfully? 
- [x] I built this PR locally for my native architecture, x86_64-musl
- [x] I built this PR locally for these architectures:
  - [x] aarch64-musl
  - [ ] armv7l
  - [ ] armv6l-musl
  - [x] ppc-musl
  - [x] ppc64le-musl