[IA64] Fix xencomm_arch_hypercall_suspend

This hypercall is changed to new hypercall mechanism

Signed-off-by: Anthony Xu <anthony.xu@intel.com>

linux-2.6-xen-sparse/arch/ia64/xen/xensetup.S

@@ -38,14 +38,14 @@ END(early_xen_setup)
 /* Stub for suspend.
    Just force the stacked registers to be written in memory.  */	
 GLOBAL_ENTRY(xencomm_arch_hypercall_suspend)
-	mov r15=r32
 	;; 
-	alloc r20=ar.pfs,0,0,0,0
+	alloc r20=ar.pfs,0,0,2,0
 	mov r2=__HYPERVISOR_sched_op
 	;; 
 	/* We don't want to deal with RSE.  */
 	flushrs
-	mov r14=2 // SCHEDOP_shutdown
+	mov r33=r32
+	mov r32=2 // SCHEDOP_shutdown
 	;;
 	break 0x1000
 	;;