[VOL-3058][VOL-3059][VOL-3615] Multi-OLT framework changes and updated ATT, DT, TT existing tests accordingly

Change-Id: Iad0a6d4fba3c2bf647b8a844413e8d16405cd121
diff --git a/tests/data/bbsim-kind-16.yaml b/tests/data/bbsim-kind-16.yaml
index 9dbd688..fabbf42 100644
--- a/tests/data/bbsim-kind-16.yaml
+++ b/tests/data/bbsim-kind-16.yaml
@@ -36,21 +36,37 @@
 hosts:
   src:
     - onu: 'BBSM00000001'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM00000002'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM00000003'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM00000004'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM00000005'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM00000006'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM00000007'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM00000008'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM00000009'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM0000000a'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM0000000b'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM0000000c'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM0000000d'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM0000000e'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM0000000f'
+      olt: 'BBSIM_OLT_0'
     - onu: 'BBSM00000010'
+      olt: 'BBSIM_OLT_0'
 
   dst:
     - ip: null