Import Mbed OS hard-float snapshot

tools/test_configs/EthernetInterface.json

@@ -0,0 +1,29 @@
+{
+    "config": {
+        "echo-server-addr" : {
+            "help" : "IP address of echo server",
+            "value" : "\"echo.mbedcloudtesting.com\""
+        },
+        "echo-server-port" : {
+            "help" : "Port of echo server",
+            "value" : "7"
+        },
+        "echo-server-discard-port" : {
+            "help" : "Discard port of echo server",
+            "value" : "9"
+        },
+        "echo-server-port-tls" : {
+            "help" : "Port of echo server for TLS",
+            "value" : "2007"
+        },
+        "echo-server-discard-port-tls" : {
+            "help" : "Discard port of echo server for TLS",
+            "value" : "2009"
+        }
+    },
+    "target_overrides": {
+        "*": {
+            "target.network-default-interface-type": "ETHERNET"
+        }
+    }
+}