Issue #489: Updated vars of configure_new_devices

Signed-off-by: abhishek-s-a <a_sa@dellteam.com>

control_plane/tools/roles/configure_new_devices/vars/main.yml

@@ -17,4 +17,5 @@
 
 # Usage: main.yml
 ethernet_template_name: "ethernet_template"
-idrac_template_name: "idrac_template"
+idrac_template_name: "idrac_template"
+dhcp_wait_time: 600