[XEN][IA64] IA64 build fixes after recent PER_CPU changes.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>

xen/arch/ia64/xen/xensetup.c

@@ -423,13 +423,14 @@ void start_kernel(void)
 	(xenheap_phys_end-__pa(heap_start)) >> 20,
 	(xenheap_phys_end-__pa(heap_start)) >> 10);
 
+    late_setup_arch(&cmdline);
+
     scheduler_init();
     idle_vcpu[0] = (struct vcpu*) ia64_r13;
     idle_domain = domain_create(IDLE_DOMAIN_ID);
     if ( (idle_domain == NULL) || (alloc_vcpu(idle_domain, 0, 0) == NULL) )
         BUG();
 
-    late_setup_arch(&cmdline);
     alloc_dom_xen_and_dom_io();
     setup_per_cpu_areas();
     mem_init();

xen/common/domain.c

@@ -21,6 +21,7 @@
 #include <xen/hypercall.h>
 #include <xen/delay.h>
 #include <xen/shutdown.h>
+#include <xen/percpu.h>
 #include <asm/debugger.h>
 #include <public/dom0_ops.h>
 #include <public/sched.h>

xen/common/timer.c

@@ -17,6 +17,7 @@
 #include <xen/softirq.h>
 #include <xen/timer.h>
 #include <xen/keyhandler.h>
+#include <xen/percpu.h>
 #include <asm/system.h>
 #include <asm/desc.h>