Add st7789 lcd driver

Makefile

@@ -8,6 +8,7 @@ TARGET_FILE ?= $(APPLICATION).elf
 CC = $(CROSS_COMPILE)gcc
 CPP = $(CROSS_COMPILE)cpp
 OBJCOPY = $(CROSS_COMPILE)objcopy
+SIZE = $(CROSS_COMPILE)size
 
 SRC_DIR = src
 OBJ_DIR = obj/$(PLATFORM)
@@ -56,6 +57,7 @@ $(TARGET): $(OBJS) $(THIS_MAKEFILE)
 	@mkdir -p $(dir $@)
 	$(CC) $(CC_FLAGS) $(LD_FLAGS) $(OBJS) $(addprefix -l,$(LIBS)) -o $@
 	ln -sf $(shell pwd)/$@ $(shell pwd)/bin/firmware.elf
+	$(SIZE) -x $@
 
 $(TARGET_HEX): $(TARGET) $(THIS_MAKEFILE)
 	$(OBJCOPY) -O ihex $(TARGET) $(TARGET_HEX)