Add types referenced by acpid/pcid/xhcid but missing from redox-driver-sys:
- AcpiQuirkFlags: 15 flag variants (OSI disable, battery, lid, sleep)
- ChipsetQuirkFlags, ClocksourceQuirkFlags, CpuBugFlags, UsbAudioQuirkFlags:
empty bitflag structs (full implementation is follow-up)
- ConfigWriteWidth enum, QuirkAction enum, PciConfigWriter trait
- PciQuirkLookup struct, lookup_pci_quirks_full function
- XhciControllerQuirkFlags: 7 variants
- lookup_xhci_controller_quirks_full function
- load_dmi_acpi_quirks function
- Missing PciQuirkFlags: NO_PM_RESET, NO_FLR, BROKEN_INTX_MASKING, NO_PME
- Default impl on PciQuirkFlags (required by lookup return)
Also restored 'use syscall as redox_syscall' alias to all source files
since the redox_syscall crate (0.7.x and 0.8.x) exposes itself as 'syscall'.
This unblocks compilation of base fork's pcid, acpid, xhcid daemons.
vasilito
5916b24732