Move STM32 example projects in family specific folders

examples/stm32/f1/Makefile.include

@@ -27,11 +27,11 @@ OBJDUMP		= $(PREFIX)-objdump
 GDB		= $(PREFIX)-gdb
 # Uncomment this line if you want to use the installed (not local) library.
 #TOOLCHAIN_DIR := $(shell dirname `which $(CC)`)/../$(PREFIX)
-TOOLCHAIN_DIR   = ../../../..
+TOOLCHAIN_DIR   = ../../../../..
 CFLAGS		+= -Os -g -Wall -Wextra -I$(TOOLCHAIN_DIR)/include \
 		   -fno-common -mcpu=cortex-m3 -mthumb -msoft-float -MD -DSTM32F1
 LDSCRIPT	= $(BINARY).ld
-LDFLAGS		+= -lc -lnosys -L$(TOOLCHAIN_DIR)/lib -L$(TOOLCHAIN_DIR)/lib/stm32f1 \
+LDFLAGS		+= -lc -lnosys -L$(TOOLCHAIN_DIR)/lib -L$(TOOLCHAIN_DIR)/lib/stm32/f1 \
 		   -T$(LDSCRIPT) -nostartfiles -Wl,--gc-sections \
 		   -mthumb -march=armv7 -mfix-cortex-m3-ldrd -msoft-float
 OBJS		+= $(BINARY).o
@@ -79,7 +79,7 @@ flash: $(BINARY).flash
 	@#printf "  OBJDUMP $(*).list\n"
 	$(Q)$(OBJDUMP) -S $(*).elf > $(*).list
 
-%.elf: $(OBJS) $(LDSCRIPT) $(TOOLCHAIN_DIR)/lib/stm32f1/libopencm3_stm32f1.a
+%.elf: $(OBJS) $(LDSCRIPT) $(TOOLCHAIN_DIR)/lib/stm32/f1/libopencm3_stm32f1.a
 	@#printf "  LD      $(subst $(shell pwd)/,,$(@))\n"
 	$(Q)$(LD) -o $(*).elf $(OBJS) -lopencm3_stm32f1 $(LDFLAGS)