ARM: tegra: export tegra_powergate_is_powered()

Export tegra_powergate_is_powered(). This function will be used by the Tegra30
code to bringup secondary CPU cores.
Signed-off-by: NPeter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: NStephen Warren <swarren@nvidia.com>
Tested-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

arch/arm/mach-tegra/include/mach/powergate.h

@@ -28,6 +28,7 @@
 #define TEGRA_POWERGATE_L2	5
 #define TEGRA_POWERGATE_MPE	6
 
+int tegra_powergate_is_powered(int id);
 int tegra_powergate_power_on(int id);
 int tegra_powergate_power_off(int id);
 int tegra_powergate_remove_clamping(int id);

arch/arm/mach-tegra/powergate.c

@@ -93,7 +93,7 @@ int tegra_powergate_power_off(int id)
 	return tegra_powergate_set(id, false);
 }
 
-static int tegra_powergate_is_powered(int id)
+int tegra_powergate_is_powered(int id)
 {
 	u32 status;