Function configure_msi 

pub fn configure_msi(
    location: PciLocation,
    msi: &MsiCapability,
    vector: u8,
    dest_apic_id: u8,
)

Configure MSI for a device to deliver a specific vector to a target APIC.

• location: PCI device location.
• msi: MSI capability previously discovered by parse_capabilities().
• vector: IDT vector number to deliver.
• dest_apic_id: Target Local APIC ID.