Arch Linux

Description:

With the advent of Linux kernel 5.15, it provides ksmbd functionality (and is, as far as I can see, enabled on `linux 5.15.2.arch1-1`). Like with other recently mainlined modules, the kernel package should register a provides so that we can install packages that depend on such modules. In the case of ksmbd, this would be named `KSMBD-MODULE`. In the other two cases where modules were provided by the `linux` package in this way (namely with `VIRTUALBOX-GUEST-MODULES`, and `WIREGUARD-MODULE`), it was because another package shipped those modules in the managed package repositories. This is not the case for ksmbd, where only a dkms module shipped in the AUR, so I guess that the case is slightly different in this instance.

Suggested change:
```
72c72
< provides=(VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE)
---
> provides=(VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE KSMBD-MODULE)
```