Add initial support to load port map from olt configuration if present.
Run the test case under olt config environment as appropriate.
Change the subscriberTest to load and use olt configuration if present before
falling back to default configuration from the auto-generated subscriber port map.
diff --git a/src/test/subscriber/generate_portmap.py b/src/test/subscriber/generate_portmap.py
index b399010..a4d8fb0 100644
--- a/src/test/subscriber/generate_portmap.py
+++ b/src/test/subscriber/generate_portmap.py
@@ -4,11 +4,10 @@
 header = '''###This file is auto-generated. Do not EDIT###'''
 def generate_port_map(num = 100):
     print("g_subscriber_port_map = {}")
-    print("g_subscriber_reverse_port_map = {}")
     for i in xrange(1, num+1):
         intf = 'veth' + str(2*i-2)
         print("g_subscriber_port_map[%d]='%s'" %(i, intf))
-        print("g_subscriber_reverse_port_map['%s']=%d" %(intf, i))
+        print("g_subscriber_port_map['%s']=%d" %(intf, i))
 
 if __name__ == '__main__':
     num = 100