message: Add L-Series SKU values to management plane
diff: "properties": {
  "name": {
  "type": "string",
  - "description": "The SKU of the Search service. Valid values include: 'free': Shared service. 'basic': Dedicated service with up to 3 replicas. 'standard': Dedicated service with up to 12 partitions and 12 replicas. 'standard2': Similar to standard, but with more capacity per search unit. 'standard3': Offers maximum capacity per search unit with up to 12 partitions and 12 replicas (or up to 3 partitions with more indexes if you also set the hostingMode property to 'highDensity').",
  + "description": "The SKU of the Search service. Valid values include: 'free': Shared service. 'basic': Dedicated service with up to 3 replicas. 'standard': Dedicated service with up to 12 partitions and 12 replicas. 'standard2': Similar to standard, but with more capacity per search unit. 'standard3': The largest Standard offering with up to 12 partitions and 12 replicas (or up to 3 partitions with more indexes if you also set the hostingMode property to 'highDensity'). 'storage_optimized_l1': Supports 1TB per partition, up to 12 partitions. 'storage_optimized_l2': Supports 2TB per partition, up to 12 partitions.'",
  "enum": [
  "free",
  "basic",
  "standard",
  "standard2",
  - "standard3"
  + "standard3",
  + "storage_optimized_l1",
  + "storage_optimized_l2"
  ],
  "x-ms-enum": {
  "name": "SkuName",
  