ARM: restart: mxc: use new restart hook

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

Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-imx/mach-bug.c

@@ -65,4 +65,5 @@ MACHINE_START(BUG, "BugLabs BUGBase")
 	.handle_irq = imx31_handle_irq,
 	.timer = &bug_timer,
 	.init_machine = bug_board_init,
+	.restart	= mxc_restart,
 MACHINE_END