[Search] Specify some renames for Aml skill in the client SDKs (Azure#17541)

* Specify some renames for the client SDKs

* Fix typo in a description

Author: Mohit-Chakraborty

specification/search/data-plane/Azure.Search/preview/2021-04-30-Preview/searchindex.json

@@ -1141,7 +1141,7 @@
           "type": "number",
           "format": "double",
           "readOnly": true,
-          "description": "The score value represents how relevant the answer is to the the query relative to other answers returned for the query."
+          "description": "The score value represents how relevant the answer is to the query relative to other answers returned for the query."
         },
         "key": {
           "type": "string",

specification/search/data-plane/Azure.Search/preview/2021-04-30-Preview/searchservice.json

@@ -8572,6 +8572,7 @@
       "description": "A dictionary of http request headers."
     },
     "AmlSkill": {
+      "x-ms-client-name": "AzureMachineLearningSkill",
       "x-ms-discriminator-value": "#Microsoft.Skills.Custom.AmlSkill",
       "allOf": [
         {
@@ -8580,11 +8581,13 @@
       ],
       "properties": {
         "uri": {
+          "x-ms-client-name": "ScoringUri",
           "type": "string",
           "x-nullable": true,
           "description": "(Required for no authentication or key authentication) The scoring URI of the AML service to which the JSON payload will be sent. Only the https URI scheme is allowed."
         },
         "key": {
+          "x-ms-client-name": "AuthenticationKey",
           "type": "string",
           "x-nullable": true,
           "description": "(Required for key authentication) The key for the AML service."