[DataFactory]Update AzureDataExplorer and AzureStorage LinkedService (Azure#13291)

Author: Jingshu923

specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/LinkedService.json

@@ -177,6 +177,10 @@
           "type": "object",
           "description": "Indicates the azure cloud type of the service principle auth. Allowed values are AzurePublic, AzureChina, AzureUsGovernment, AzureGermany. Default value is the data factory regions’ cloud type. Type: string (or Expression with resultType string)."
         },
+        "accountKind": {
+          "type": "string",
+          "description": "Specify the kind of your storage account. Allowed values are: Storage (general purpose v1), StorageV2 (general purpose v2), BlobStorage, or BlockBlobStorage. Type: string (or Expression with resultType string)."
+        },
         "encryptedCredential": {
           "type": "string",
           "description": "The encrypted credential used for authentication. Credentials are encrypted using the integration runtime credential manager. Type: string (or Expression with resultType string)."
@@ -5878,10 +5882,7 @@
       },
       "required": [
         "endpoint",
-        "servicePrincipalId",
-        "servicePrincipalKey",
-        "database",
-        "tenant"
+        "database"
       ]
     },
     "AzureFunctionLinkedService": {