fix the description (#10151)

Author: anchalkpr

specification/network/resource-manager/Microsoft.Network/stable/2020-05-01/azureFirewall.json

@@ -466,15 +466,15 @@
       "properties": {
         "addresses": {
           "type": "array",
-          "description": "The number of Public IP addresses associated with azure firewall.",
+          "description": "The list of Public IP addresses associated with azure firewall or IP addresses to be retained.",
           "items": {
             "$ref": "#/definitions/AzureFirewallPublicIPAddress"
           }
         },
         "count": {
           "type": "integer",
           "format": "int32",
-          "description": "Private IP Address associated with azure firewall."
+          "description": "The number of Public IP addresses associated with azure firewall."
         }
       },
       "description": "Public IP addresses associated with azure firewall."

specification/network/resource-manager/Microsoft.Network/stable/2020-06-01/azureFirewall.json

@@ -466,15 +466,15 @@
       "properties": {
         "addresses": {
           "type": "array",
-          "description": "The number of Public IP addresses associated with azure firewall.",
+          "description": "The list of Public IP addresses associated with azure firewall or IP addresses to be retained.",
           "items": {
             "$ref": "#/definitions/AzureFirewallPublicIPAddress"
           }
         },
         "count": {
           "type": "integer",
           "format": "int32",
-          "description": "Private IP Address associated with azure firewall."
+          "description": "The number of Public IP addresses associated with azure firewall."
         }
       },
       "description": "Public IP addresses associated with azure firewall."