CodeGen from PR 17853 in Azure/azure-rest-api-specs

Merge 36440044bfdfe2b777be37f1b5ec79d5627afec3 into 4d0adaa99964df094beae44cecb08f01ea6e66e0

Author: SDKAuto

schemas/2021-10-01/Microsoft.Compute.json

@@ -966,6 +966,21 @@
     "GalleryImageProperties": {
       "type": "object",
       "properties": {
+        "architecture": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "x64",
+                "Arm64"
+              ]
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The architecture of the image. Applicable to OS disks only."
+        },
         "description": {
           "type": "string",
           "description": "The description of this gallery image definition resource. This property is updatable."