Record acpi_rhct

struct acpi_rhct {
  struct acpi_sdt_hdr hdr;
  uacpi_u32 flags;
  uacpi_u64 timebase_frequency;
  uacpi_u32 node_count;
  uacpi_u32 nodes_offset;
  struct acpi_rhct_hdr[] entries;
  /* Full declaration omitted */ 
}