[ARM] tegra: Add ZRELADDR default for ARCH_TEGRA

fixes the warning:
.config:369:warning: symbol value '' invalid for ZRELADDR

and the prompt for ZRELADDR on make

Signed-off-by: Erik Gilling <konkers@android.com>

arch/arm/Kconfig

@@ -1601,6 +1601,7 @@ config ZRELADDR
 		ARCH_ORION5X ||\
 		ARCH_SPEAR3XX ||\
 		ARCH_SPEAR6XX ||\
+		ARCH_TEGRA ||\
 		ARCH_U8500 ||\
 		ARCH_VERSATILE ||\
 		ARCH_W90X900