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/board/armltd/integrator/Makefile

@@ -0,0 +1,16 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2004
+# ARM Ltd.
+# Philippe Robin, <philippe.robin@arm.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= lowlevel_init.o
+
+obj-y	+= integrator.o
+obj-$(CONFIG_PCI) += pci.o
+obj-y += timer.o