added axgroup attribute

templates/silent-install.conf.j2

diff --git a/templates/silent-install.conf.j2 b/templates/silent-install.conf.j2
index 80ed94d..bee8925 100644
--- a/templates/silent-install.conf.j2
+++ b/templates/silent-install.conf.j2
@@ -19,6 +19,8 @@
 APIGEE_LDAPPW={{ opdk_ldap_pass }}
 
 ENABLE_AX={{ opdk_enable_ax }}
+# AXGroup
+AXGROUP={{ ax_group }}
 MP_POD={{ opdk_mp_pod }}
 
 {% if groups['dc-1'] is defined and inventory_hostname in groups['dc-1'] %}
@@ -75,3 +77,4 @@
 MX_GROUP=mxgroup
 ORG_NAME={{ org_name }}
 {% endif %}
+