ARM: tegra: move CONFIG_TEGRAnn

<asm/arch-tegra/tegra.h> needs to use CONFIG_TEGRA* to conditionalize
some definitions, since some modules moved between generations. Move
the definition of CONFIG_TEGRAnn to a header that's included earlier,
so that it's set by the time tegra.h needs to use it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/include/asm/arch-tegra30/tegra.h b/arch/arm/include/asm/arch-tegra30/tegra.h
index c02c5d8..4ad8b1c 100644
--- a/arch/arm/include/asm/arch-tegra30/tegra.h
+++ b/arch/arm/include/asm/arch-tegra30/tegra.h
@@ -17,6 +17,8 @@
 #ifndef _TEGRA30_H_
 #define _TEGRA30_H_
 
+#define CONFIG_TEGRA30
+
 #define NV_PA_SDRAM_BASE	0x80000000	/* 0x80000000 for real T30 */
 
 #include <asm/arch-tegra/tegra.h>