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-uniphier/pll/Makefile

@@ -0,0 +1,8 @@
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-$(CONFIG_ARCH_UNIPHIER_SLD3)	+= pll-init-sld3.o pll-spectrum-sld3.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD4)		+= pll-init-ld4.o pll-spectrum-ld4.o
+obj-$(CONFIG_ARCH_UNIPHIER_PRO4)	+= pll-init-pro4.o pll-spectrum-ld4.o
+obj-$(CONFIG_ARCH_UNIPHIER_SLD8)	+= pll-init-sld8.o pll-spectrum-ld4.o