Bring back LX zones.

*** 97,117 ****
  
  #ifdef  __amd64
  
  struct brand_mach_ops s10_mops = {
          s10_brand_sysenter_callback,
          s10_brand_int91_callback,
          s10_brand_syscall_callback,
!         s10_brand_syscall32_callback
  };
  
  #else   /* ! __amd64 */
  
  struct brand_mach_ops s10_mops = {
          s10_brand_sysenter_callback,
          NULL,
          s10_brand_syscall_callback,
          NULL
  };
  #endif  /* __amd64 */
  
  #endif  /* _sparc */
--- 97,121 ----
  
  #ifdef  __amd64
  
  struct brand_mach_ops s10_mops = {
          s10_brand_sysenter_callback,
+         NULL,
          s10_brand_int91_callback,
          s10_brand_syscall_callback,
!         s10_brand_syscall32_callback,
!         NULL
  };
  
  #else   /* ! __amd64 */
  
  struct brand_mach_ops s10_mops = {
          s10_brand_sysenter_callback,
          NULL,
+         NULL,
          s10_brand_syscall_callback,
+         NULL,
          NULL
  };
  #endif  /* __amd64 */
  
  #endif  /* _sparc */