Changed Ehc Resource Id property to camel case (#22019)

Author: IndraneelPal

specification/azurestackhci/resource-manager/Microsoft.AzureStackHCI/stable/2022-12-01/clusters.json

@@ -848,7 +848,7 @@
           },
           "readOnly": true
         },
-        "EhcResourceId": {
+        "ehcResourceId": {
           "description": "Edge Hardware Center Resource Id",
           "type": "string",
           "readOnly": true