Claude review: driver core: platform: remove software node on release()

[Claude Code Review Bot <claude-review@example.com>]

Patch Review

**Correct and well-contained fix.** This adds a `platform_device_release_full()` wrapper that calls `device_remove_software_node()` before the standard release, and uses it only when a swnode is explicitly added via `pdevinfo->swnode`.

The expanded validation of mutually-exclusive software node sources is good:

```c
if ((pdevinfo->swnode && pdevinfo->properties) ||
    (pdevinfo->swnode && is_software_node(pdevinfo->fwnode)) ||
    (pdevinfo->properties && is_software_node(pdevinfo->fwnode)))
    return ERR_PTR(-EINVAL);
```

This correctly catches all three ways two software nodes could collide.

The release callback override placement is correct -- it's set after `device_add_software_node()` succeeds, so only devices with a secondary swnode get the new release callback:

```c
pdev->dev.release = platform_device_release_full;
```

**Minor nit**: commit message has "additonally" (should be "additionally").

**Verdict**: Looks correct as a standalone v7.1 fix.

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