x86: fixup machine_ops reboot_{32|64}.c unification fallout

When reboot_32.c and reboot_64.c were unified (commit 4d022e35...),
the machine_ops code was broken, leading to xen pvops kernels failing
to properly halt/poweroff/reboot etc. This fixes that up.
Signed-off-by: NJody Belka <knew-linux@pimb.org>
Cc: Miguel Boton <mboton@gmail.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/reboot.c

@@ -326,7 +326,7 @@ static inline void kb_wait(void)
 	}
 }
 
-void machine_emergency_restart(void)
+static void native_machine_emergency_restart(void)
 {
 	int i;
 
@@ -376,7 +376,7 @@ void machine_emergency_restart(void)
 	}
 }
 
-void machine_shutdown(void)
+static void native_machine_shutdown(void)
 {
 	/* Stop the cpus and apics */
 #ifdef CONFIG_SMP
@@ -420,7 +420,7 @@ void machine_shutdown(void)
 #endif
 }
 
-void machine_restart(char *__unused)
+static void native_machine_restart(char *__unused)
 {
 	printk("machine restart\n");
 
@@ -429,11 +429,11 @@ void machine_restart(char *__unused)
 	machine_emergency_restart();
 }
 
-void machine_halt(void)
+static void native_machine_halt(void)
 {
 }
 
-void machine_power_off(void)
+static void native_machine_power_off(void)
 {
 	if (pm_power_off) {
 		if (!reboot_force)
@@ -443,9 +443,35 @@ void machine_power_off(void)
 }
 
 struct machine_ops machine_ops = {
-	.power_off = machine_power_off,
-	.shutdown = machine_shutdown,
-	.emergency_restart = machine_emergency_restart,
-	.restart = machine_restart,
-	.halt = machine_halt
+	.power_off = native_machine_power_off,
+	.shutdown = native_machine_shutdown,
+	.emergency_restart = native_machine_emergency_restart,
+	.restart = native_machine_restart,
+	.halt = native_machine_halt
 };
+
+void machine_power_off(void)
+{
+	machine_ops.power_off();
+}
+
+void machine_shutdown(void)
+{
+	machine_ops.shutdown();
+}
+
+void machine_emergency_restart(void)
+{
+	machine_ops.emergency_restart();
+}
+
+void machine_restart(char *cmd)
+{
+	machine_ops.restart(cmd);
+}
+
+void machine_halt(void)
+{
+	machine_ops.halt();
+}
+