fix: irq settings

[ZR233]

base on arceos-hypervisor/axvcpu#38

[Copilot]

Pull Request Overview

This PR fixes IRQ settings in the ARMv8 hypervisor implementation by refactoring the VTCR_EL2 configuration, improving IRQ handling, and cleaning up dependencies.

• Replaces conditional compilation for EPT paging with runtime VTCR_EL2 probing
• Fixes IRQ/FIQ handling by properly configuring HCR_EL2 settings
• Removes unused dependencies and cleans up imports

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/vcpu.rs	Refactors VTCR_EL2 setup with runtime probing and fixes IRQ configuration
src/pcpu.rs	Removes hardcoded IRQ/FIQ settings from hardware enable
src/exception_utils.rs	Simplifies imports by using wildcard import
Cargo.toml	Reorganizes metadata and removes unused tock-registers dependency
.cargo/config.toml	Adds build target configuration

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