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/powerpc/cpu/mpc8xx/Makefile

@@ -0,0 +1,27 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+# ccflags-y += -DET_DEBUG
+
+extra-y += start.o
+extra-y += traps.o
+obj-y	+= bedbug_860.o
+obj-y	+= commproc.o
+obj-y	+= cpu.o
+obj-y	+= cpu_init.o
+obj-y	+= fec.o
+obj-$(CONFIG_OF_LIBFDT) += fdt.o
+obj-y	+= i2c.o
+obj-y	+= interrupts.o
+obj-y	+= scc.o
+obj-y	+= serial.o
+obj-y	+= speed.o
+obj-y	+= spi.o
+obj-y	+= upatch.o
+obj-y	+= video.o
+obj-y	+= kgdb.o
+obj-y	+= plprcr_write.o