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/palmtx.c b/arch/arm/mach-pxa/palmtx.c
index 4e3e459..6170d76 100644
--- a/arch/arm/mach-pxa/palmtx.c
+++ b/arch/arm/mach-pxa/palmtx.c
@@ -369,5 +369,6 @@
 	.init_irq	= pxa27x_init_irq,
 	.handle_irq	= pxa27x_handle_irq,
 	.timer		= &pxa_timer,
-	.init_machine	= palmtx_init
+	.init_machine	= palmtx_init,
+	.restart	= pxa_restart,
 MACHINE_END