add etm

etm.json

@@ -0,0 +1,24 @@
+{
+    "target": "kasli",
+    "min_artiq_version": "6.0",
+    "variant": "etm",
+    "hw_rev": "v2.0",
+    "base": "standalone",
+    "core_addr": "192.168.1.75",
+    "peripherals": [
+        {
+            "type": "dio",
+            "ports": [1],
+            "bank_direction_low": "input",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "phaser",
+            "ports": [2]
+        },
+        {
+            "type": "phaser",
+            "ports": [4]
+        }
+   ]
+}