Fix for adding entgra favicon to login page

Fixes https://gitlab.com/entgra/product-iots/-/issues/1164

iot-core/src/core/resources/extensions/header.jsp

@@ -152,7 +152,7 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
-<link rel="icon" href="libs/themes/default/assets/images/favicon.ico" type="image/x-icon"/>
+<link rel="icon" href="extensions/customAssets/favicon.png" type="image/x-icon"/>
 <link href="libs/themes/default/theme.min.css" rel="stylesheet">
 
 <style>