Add usage description for 'noloss' option

Change-Id: I454d21fe90511d20e1e25a62bb2943ccd59e52c6
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
Issue-ID: INT-1325
diff --git a/test/vcpe/vcpe.py b/test/vcpe/vcpe.py
index 9c533a0..3677e80 100755
--- a/test/vcpe/vcpe.py
+++ b/test/vcpe/vcpe.py
@@ -229,7 +229,8 @@
     print(' vcpe.py infra:      Deploy infrastructure, including DHCP, AAA, DNS, Web Server, vBNG, vGMUX, vBRG.')
     print(' vcpe.py brg:        Deploy brg only (for testing after infra succeeds).')
     print(' vcpe.py customer:   Deploy customer service, including vGW and VxLANs')
-    print(' vcpe.py loop:       Test closed loop control')
+    print(' vcpe.py loop:       Test closed loop control (packet loss set to 22)')
+    print(' vcpe.py noloss:     Set vGMUX packet loss to 0')
     print('----------------------------------------------------------------------------------------------------')
 
     if len(sys.argv) != 2: