ARM: tegra: Add prototypes for subsystem suspend functions

Signed-off-by: Colin Cross <ccross@android.com>
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index 17c74d2..5f065f9 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -26,6 +26,7 @@
 #include <asm/hardware/gic.h>
 
 #include <mach/iomap.h>
+#include <mach/suspend.h>
 
 #include "board.h"