Record acpi_dmar_drhd

struct acpi_dmar_drhd {
  struct acpi_dmar_entry_hdr hdr;
  uacpi_u8 flags;
  uacpi_u8 size;
  uacpi_u16 segment;
  uacpi_u64 address;
  struct acpi_dmar_dss[] entries;
  /* Full declaration omitted */ 
}