Added chain for Arévia. (ethereum-lists#2328)

* Added chain for Arévia.

* Fixed shortname.

Author: countessellis

_data/chains/eip155-2309.json

@@ -0,0 +1,17 @@
+{
+  "name": "Arevia",
+  "chain": "Arevia",
+  "rpc": [],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Arev",
+    "symbol": "ARÉV",
+    "decimals": 18
+  },
+  "infoURL": "",
+  "shortName": "arevia",
+  "chainId": 2309,
+  "networkId": 2309,
+  "explorers": [],
+  "status": "incubating"
+}