ARM: restart: mmp: use new restart hook

Hook the Shark restart code into the new restart hook rather than
using arch_reset().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-mmp/avengers_lite.c b/arch/arm/mach-mmp/avengers_lite.c
index 39f0878..8de3dc6 100644
--- a/arch/arm/mach-mmp/avengers_lite.c
+++ b/arch/arm/mach-mmp/avengers_lite.c
@@ -45,4 +45,5 @@
 	.init_irq       = pxa168_init_irq,
 	.timer          = &pxa168_timer,
 	.init_machine   = avengers_lite_init,
+	.restart	= pxa168_restart,
 MACHINE_END