Merge pull request #159 from pkendall64/fix-jumper-etx

Fox ETX pass through on jumper internal modules

Author: JyeSmith

hardware/targets.json

@@ -156,19 +156,19 @@
                 "product_name": "Jumper T-12 Max Internal TX Modules",
                 "firmware": "ESP_TX_Backpack",
                 "platform": "esp8285",
-                "upload_methods": ["uart", "wifi"]
+                "upload_methods": ["etx", "wifi"]
             },
             "t15": {
                 "product_name": "Jumper T-15 Internal TX Modules",
                 "firmware": "ESP_TX_Backpack",
                 "platform": "esp8285",
-                "upload_methods": ["uart", "wifi"]
+                "upload_methods": ["etx", "wifi"]
             },
             "t20": {
                 "product_name": "Jumper T-20 Internal TX Modules with Backpack extension",
                 "firmware": "ESP_TX_Backpack",
                 "platform": "esp8285",
-                "upload_methods": ["uart", "wifi"]
+                "upload_methods": ["uart", "etx" ,"wifi"]
             }
         }
     },