Add dhcp discovery to smartthings (#50306)

homeassistant/components/smartthings/manifest.json

@@ -7,5 +7,23 @@
   "dependencies": ["webhook"],
   "after_dependencies": ["cloud"],
   "codeowners": ["@andrewsayre"],
-  "iot_class": "cloud_push"
+  "iot_class": "cloud_push",
+  "dhcp": [
+    {
+      "hostname": "st*",
+      "macaddress": "24FD5B*"
+    },
+    {
+      "hostname": "smartthings*",
+      "macaddress": "24FD5B*"
+    },
+    {
+      "hostname": "hub*",
+      "macaddress": "24FD5B*"
+    },
+    {
+      "hostname": "hub*",
+      "macaddress": "D052A8*"
+    }    
+  ]
 }

homeassistant/generated/dhcp.py

@@ -178,6 +178,26 @@ DHCP = [
         "hostname": "sense-*",
         "macaddress": "DCEFCA*"
     },
+    {
+        "domain": "smartthings",
+        "hostname": "st*",
+        "macaddress": "24FD5B*"
+    },
+    {
+        "domain": "smartthings",
+        "hostname": "smartthings*",
+        "macaddress": "24FD5B*"
+    },
+    {
+        "domain": "smartthings",
+        "hostname": "hub*",
+        "macaddress": "24FD5B*"
+    },
+    {
+        "domain": "smartthings",
+        "hostname": "hub*",
+        "macaddress": "D052A8*"
+    },
     {
         "domain": "solaredge",
         "hostname": "target",