ARM: restart: tegra: use new restart hook

Hook these platforms 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-tegra/board-dt.c b/arch/arm/mach-tegra/board-dt.c
index 74743ad..aaaa17c 100644
--- a/arch/arm/mach-tegra/board-dt.c
+++ b/arch/arm/mach-tegra/board-dt.c
@@ -132,5 +132,6 @@
 	.init_irq	= tegra_init_irq,
 	.timer		= &tegra_timer,
 	.init_machine	= tegra_dt_init,
+	.restart	= tegra_assert_system_reset,
 	.dt_compat	= tegra_dt_board_compat,
 MACHINE_END