tegra: Don't enable binman on ARMv8 SoCs

At present only the ARMv7 tegra SoCs actually use binman to create an
image. Change the config to reflect this, since otherwise running binman
will produce an error.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 15e7684..a397748 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -41,7 +41,6 @@
 
 config TEGRA_COMMON
 	bool "Tegra common options"
-	select BINMAN
 	select BOARD_EARLY_INIT_F
 	select CLK
 	select DM
@@ -69,6 +68,7 @@
 
 config TEGRA_ARMV7_COMMON
 	bool "Tegra 32-bit common options"
+	select BINMAN
 	select CPU_V7A
 	select SPL
 	select SPL_BOARD_INIT if SPL