[ElmSharp] Fix description of API (Samsung#339)

### Description of Change ###
Fix the description of API `Entry.DisableSelection(bool disable)`

### Bugs Fixed ###
N/A

### API Changes ###
N/A

### Behavioral Changes ###
N/A

src/ElmSharp/ElmSharp/Entry.cs

@@ -1131,9 +1131,10 @@ public void PasteSelection()
         }
 
         /// <summary>
-        /// This disables the entry's selection.
+        /// This disables the entry's selection handlers.
+        /// This works properly on the profile that provides selection handlers.
         /// </summary>
-        /// <param name="disable">If true, the selection is disabled.</param>
+        /// <param name="disable">If true, the selection handlers are disabled.</param>
         /// <since_tizen> preview </since_tizen>
         public void DisableSelection(bool disable)
         {
@@ -1192,4 +1193,4 @@ protected override IntPtr CreateHandle(EvasObject parent)
             return Interop.Elementary.elm_entry_add(parent.Handle);
         }
     }
-}
+}