ARM: restart: pxa: use new restart hook

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

Acked-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 6c39c33..7678b1b 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -430,4 +430,5 @@
 	.handle_irq	= pxa3xx_handle_irq,
 	.timer		= &pxa_timer,
 	.init_machine	= zylonite_init,
+	.restart	= pxa_restart,
 MACHINE_END