[ReleasePR iotcentral] Fixing 2018-09-01 Spec (Azure#2563)

Create to sync Azure/azure-rest-api-specs#20309
[ReCreate this PR](https://github.com/azure-resource-manager-schemas/compare/main...azure-sdk:sdkAuto/iotcentral?expand=1)

Author: msftbot[bot]

schemas/2018-09-01/Microsoft.IotCentral.json

@@ -84,6 +84,21 @@
           "type": "string",
           "description": "The display name of the application."
         },
+        "state": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "created",
+                "suspended"
+              ]
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The current state of the application."
+        },
         "subdomain": {
           "type": "string",
           "description": "The subdomain of the application."

schemas/2021-11-01-preview/Microsoft.IotCentral.json

@@ -299,7 +299,8 @@
         "applyToDevices": {
           "oneOf": [
             {
-              "type": "boolean"
+              "type": "boolean",
+              "default": false
             },
             {
               "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
@@ -310,7 +311,8 @@
         "applyToIoTCentral": {
           "oneOf": [
             {
-              "type": "boolean"
+              "type": "boolean",
+              "default": false
             },
             {
               "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"