chore: 更新 QEMU 配置文件并移除旧的 runner 设置

[ZR233]

No description provided.

[Copilot]

Pull request overview

This PR performs maintenance tasks by adding a QEMU configuration file and cleaning up old runner settings in the cargo configuration.

• Adds a new .qemu.toml configuration file for the usb-host package with QEMU emulation settings
• Removes a commented-out runner configuration line that referenced the old ostool cargo-test command

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
usb-host/.qemu.toml	Adds QEMU configuration with cortex-a53 CPU settings and USB storage device setup
.cargo/config.toml	Removes obsolete commented runner line, keeping only the active cargo osrun runner

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[Copilot]

This file appears to be a duplicate of the existing qemu.toml file in the same directory. Both files contain identical content (same QEMU arguments, same configuration fields).

The test workflow in .github/workflows/test.yml line 32 uses -c qemu.toml to specify the configuration file explicitly, which suggests qemu.toml is the intended configuration file name.

Consider whether:

1. This .qemu.toml file is meant to replace qemu.toml (in which case qemu.toml should be removed)
2. Both files serve different purposes (in which case they should have different content or documentation explaining their usage)
3. This is an accidental duplication (in which case one should be removed)

Suggested change

	args = [
	"-nographic",
	"-cpu",
	"cortex-a53",
	"-usb",
	"-drive",
	"if=none,id=stick,format=raw,file=test.img",
	"-device",
	"qemu-xhci,id=xhci",
	"-device",
	"usb-storage,bus=xhci.0,drive=stick",
	]
	fail_regex = []
	success_regex = []
	to_bin = true
	uefi = false
	# This file intentionally left without configuration.
	# The canonical QEMU configuration for this directory is `qemu.toml`.
	# If you intended to modify the QEMU arguments, edit `qemu.toml` instead.