new target added L-TEK FF1705 based on XDOT

Author: gorazd

targets/targets.json

@@ -1662,6 +1662,12 @@
         "device_name": "STM32L151CC",
         "bootloader_supported": true
     },
+    "FF1705_L151CC": {
+        "supported_form_factors": ["ARDUINO"],
+        "inherits": ["XDOT_L151CC"],
+        "detect_code": ["8080"],
+        "extra_labels_add": ["L-TEK"]
+    },
     "MOTE_L152RC": {
         "inherits": ["FAMILY_STM32"],
         "core": "Cortex-M3",