Tegra: Rework KConfig options to allow 64-bit builds (T210)

Moved Tegra config options to mach-tegra/Kconfig so that both
32-bit and 64-bit builds can co-exist for Tegra SoCs.

T210 will be 64-bit only (no SPL) and will require a 32-bit
AVP/BPMP loader.
Signed-off-by: NTom Warren <twarren@nvidia.com>

arch/arm/Kconfig

@@ -687,17 +687,6 @@ config TARGET_XILINX_ZYNQMP
 
 config TEGRA
 	bool "NVIDIA Tegra"
-	select SUPPORT_SPL
-	select SPL
-	select OF_CONTROL
-	select SPL_DISABLE_OF_CONTROL
-	select CPU_V7
-	select DM
-	select DM_SPI_FLASH
-	select DM_SERIAL
-	select DM_I2C
-	select DM_SPI
-	select DM_GPIO
 
 config TARGET_VEXPRESS64_AEMV8A
 	bool "Support vexpress_aemv8a"

arch/arm/mach-tegra/Kconfig

 if TEGRA
 
+config TEGRA_ARMV7_COMMON
+	bool "Tegra 32-bit"
+	select SUPPORT_SPL
+	select SPL
+	select OF_CONTROL
+	select SPL_DISABLE_OF_CONTROL
+	select CPU_V7
+	select DM
+	select DM_SPI_FLASH
+	select DM_SERIAL
+	select DM_I2C
+	select DM_SPI
+	select DM_GPIO
+
 choice
 	prompt "Tegra SoC select"
 	optional
 
 config TEGRA20
 	bool "Tegra20 family"
+	select TEGRA_ARMV7_COMMON
 
 config TEGRA30
 	bool "Tegra30 family"
+	select TEGRA_ARMV7_COMMON
 
 config TEGRA114
 	bool "Tegra114 family"
+	select TEGRA_ARMV7_COMMON
 
 config TEGRA124
 	bool "Tegra124 family"
+	select TEGRA_ARMV7_COMMON
 
 endchoice