Add ethernet to ONC validation and Shill translation.

chromeos/test/data/network/ethernet_with_eap.onc

Index: chromeos/test/data/network/ethernet_with_eap.onc
diff --git a/chromeos/test/data/network/ethernet_with_eap.onc b/chromeos/test/data/network/ethernet_with_eap.onc
new file mode 100644
index 0000000000000000000000000000000000000000..e12b3d04230b7fe49a930e401c2eed8eebe427a7
--- /dev/null
+++ b/chromeos/test/data/network/ethernet_with_eap.onc
@@ -0,0 +1,24 @@
+{
+  "Ethernet":{
+    "Authentication":"None",
+    "EAP":{
+      "ClientCertPattern":{
+        "EnrollmentURI":[
+          "chrome-extension://delkjfjibodjclmdijflfnimdmgdagfk/generate-cert.html"
+        ],
+        "IssuerCARef":[
+          "{58ac1967-a0e7-49e9-be68-123abc}",
+          "{42cb13cd-140c-4941-9fb6-456def}"
+        ]
+      },
+      "ClientCertType":"Pattern",
+      "Identity":"abc ${LOGIN_ID}@my.domain.com",
+      "Outer":"EAP-TLS",
+      "SaveCredentials":true,
+      "UseSystemCAs":true
+    }
+  },
+  "GUID":"guid",
+  "Name":"name",
+  "Type":"Ethernet"
+}