Fixed main Makefile dependency

Makefile

 include dir_list.mk
 
-SYN_TOP = $(TOP)/syn/cute_wr/wr_core_demo
+SYN_TOP = $(TOP)syn/cute_wr/wr_core_demo
 EB_TGT = $(EB_DIR)/api/libetherbone.a
 BIT_TGT = $(SYN_TOP)/cute_top_wrc.bit
 WRC_TGT = $(FW_DIR)/wrc.elf
@@ -30,7 +30,7 @@ etherbone-clean:
 etherbone-install:
 	$(MAKE) -C $(EB_DIR)/api install
 
-tools: etherbone
+tools: $(EB_TGT)
 	$(MAKE) -C tools EB=$(EB_DIR)/api all
 
 tools-clean:
@@ -48,7 +48,7 @@ $(WRC_TGT): $(EB_TGT) $(FW_DIR)/.config
 firmware-clean:
 	$(MAKE) -C $(FW_DIR) EB=$(EB_DIR)/api clean
 
-$(BIT_TGT): firmware
+$(BIT_TGT): $(WRC_TGT)
 	$(MAKE) -C $(SYN_TOP) all
 
 gateware-clean: