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/palmtreo.c b/arch/arm/mach-pxa/palmtreo.c
index 94e9708..ec82491 100644
--- a/arch/arm/mach-pxa/palmtreo.c
+++ b/arch/arm/mach-pxa/palmtreo.c
@@ -452,6 +452,7 @@
 	.handle_irq       = pxa27x_handle_irq,
 	.timer          = &pxa_timer,
 	.init_machine   = treo680_init,
+	.restart	= pxa_restart,
 MACHINE_END
 #endif
 
@@ -464,5 +465,6 @@
 	.handle_irq       = pxa27x_handle_irq,
 	.timer          = &pxa_timer,
 	.init_machine	= centro_init,
+	.restart	= pxa_restart,
 MACHINE_END
 #endif