CodeGen from PR 15915 in Azure/azure-rest-api-specs

[Hub Generated] Review request for Microsoft.PowerBIdedicated to add version stable/2017-10-01 (#15915)

* Update missing properties in PowerBIDedicated objects 2017-10-01

* Move PowerBIDedicated properties to new definitions

* Realign error response to recommended schema. 202 response not necessary in older api-version.

Author: SDKAuto

schemas/2017-10-01/Microsoft.PowerBIDedicated.json

@@ -127,6 +127,17 @@
     "ResourceSku": {
       "type": "object",
       "properties": {
+        "capacity": {
+          "oneOf": [
+            {
+              "type": "integer"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The capacity of the SKU."
+        },
         "name": {
           "type": "string",
           "description": "Name of the SKU level."