Enable basic authentication in cert-mgt webapp

components/certificate-mgt/org.wso2.carbon.certificate.mgt.api/src/main/webapp/WEB-INF/web.xml

@@ -37,6 +37,10 @@
         <param-name>doAuthentication</param-name>
         <param-value>true</param-value>
     </context-param>
+    <context-param>
+        <param-name>basicAuth</param-name>
+        <param-value>true</param-value>
+    </context-param>
 
     <!--publish to apim-->
     <context-param>

components/certificate-mgt/org.wso2.carbon.certificate.mgt.v09.api/src/main/webapp/WEB-INF/web.xml

@@ -41,6 +41,10 @@
         <param-name>isDefault</param-name>
         <param-value>false</param-value>
     </context-param>
+    <context-param>
+        <param-name>basicAuth</param-name>
+        <param-value>true</param-value>
+    </context-param>
 
     <!--publish to apim-->
     <context-param>