ARM: restart: remove argument to setup_mm_for_reboot()

setup_mm_for_reboot() doesn't make use of its argument, so remove it.

Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mm/nommu.c

@@ -43,7 +43,7 @@ void __init paging_init(struct machine_desc *mdesc)
 /*
  * We don't need to do anything here for nommu machines.
  */
-void setup_mm_for_reboot(char mode)
+void setup_mm_for_reboot(void)
 {
 }