Add Example makefile to linker script generator dir

ld/Makefile.example

@@ -0,0 +1,46 @@
+BINARY = button
+
+DEVICE = stm32f407vgt6
+
+# common Makefile.include from examples directory unpacked and stripped
+#include ../../Makefile.include
+
+CC		= arm-none-eabi-gcc
+LD		= arm-none-eabi-gcc
+OBJCOPY		= arm-none-eabi-objcopy
+OBJDUMP		= arm-none-eabi-objdump
+GDB		= arm-none-eabi-gdb
+
+TOOLCHAIN_DIR	?= ../../../../../libopencm3
+
+CFLAGS		+= <...> 
+LDSCRIPT	?= $(BINARY).ld
+LDFLAGS		+= <..>
+OBJS		+= $(BINARY).o
+
+GENFILES	?= *.o
+
+all: images
+
+## This is the place where the translation DEVICE->LDSCRIPT will be executed
+include $(TOOLCHAIN_DIR)/ld/Makefile.linker
+
+images: $(BINARY).images
+flash: $(BINARY).flash
+
+<... comon makefile continues ...>
+
+clean:
+	$(Q)rm -f *.o
+	$(Q)rm -f *.d
+	$(Q)rm -f *.elf
+	$(Q)rm -f *.bin
+	$(Q)rm -f *.hex
+	$(Q)rm -f *.srec
+	$(Q)rm -f *.list
+	$(Q)rm -f $(GENFILES)
+
+.PHONY: images clean
+
+-include $(OBJS:.o=.d)
+