avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/arch/arm/mach-keystone/Kconfig

@@ -0,0 +1,26 @@
+if ARCH_KEYSTONE
+
+choice
+	prompt "TI Keystone board select"
+	optional
+
+config TARGET_K2HK_EVM
+	bool "TI Keystone 2 Kepler/Hawking EVM"
+
+config TARGET_K2E_EVM
+	bool "TI Keystone 2 Edison EVM"
+
+config TARGET_K2L_EVM
+	bool "TI Keystone 2 Lamar EVM"
+
+config TARGET_K2G_EVM
+	bool "TI Keystone 2 Galileo EVM"
+
+endchoice
+
+config SYS_SOC
+	default "keystone"
+
+source "board/ti/ks2_evm/Kconfig"
+
+endif