[ReleasePR servicelinker] Copy Change from azure-rest-api-specs-pr/RPSaaSMaster (#2213)

Create to sync Azure/azure-rest-api-specs#17978
[ReCreate this PR](https://github.com/azure-resource-manager-schemas/compare/main...AzureSDKAutomation:sdkAuto/servicelinker?expand=1)

Author: msftbot[bot]

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

@@ -105,9 +105,31 @@
           ],
           "description": "The application client type."
         },
+        "secretStore": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/SecretStore"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "An option to store secret value in secure place"
+        },
         "targetId": {
           "type": "string",
           "description": "The resource Id of target service."
+        },
+        "vNetSolution": {
+          "oneOf": [
+            {
+              "$ref": "#/definitions/VNetSolution"
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "The VNet solution for linker"
         }
       },
       "description": "The properties of the linker."
@@ -135,6 +157,16 @@
       ],
       "description": "The authentication info when authType is secret"
     },
+    "SecretStore": {
+      "type": "object",
+      "properties": {
+        "keyVaultId": {
+          "type": "string",
+          "description": "The key vault id to store secret"
+        }
+      },
+      "description": "An option to store secret value in secure place"
+    },
     "ServicePrincipalCertificateAuthInfo": {
       "type": "object",
       "properties": {
@@ -234,6 +266,27 @@
         "subscriptionId"
       ],
       "description": "The authentication info when authType is userAssignedIdentity"
+    },
+    "VNetSolution": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "serviceEndpoint",
+                "privateLink"
+              ]
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Type of VNet solution."
+        }
+      },
+      "description": "The VNet solution for linker"
     }
   }
 }