Updated Yang model for Feature delay from boolean to string

Signed-off-by: Abhishek Dosi <[email protected]>

src/sonic-yang-models/yang-models/sonic-feature.yang

@@ -29,6 +29,11 @@ module sonic-feature{
         type string;
     }
 
+    typedef feature-delay-status {
+        description "configuration to set the feature has delay scope as true/false";
+        type string;
+    }
+
     container sonic-feature {
 
         container FEATURE {
@@ -60,7 +65,7 @@ module sonic-feature{
                 leaf delayed {
                     description "This configuration identicates if the feature needs to be delayed until
                                  system initialization";
-                    type stypes:boolean_type;
+                    type feature-delay-status;
                     default "false";
                 }