VOL-1689, VOL-1586: openolt now sets DISCOVERED state for onu

Needed to match what openolt-go does.  Also needed to work with:
https://gerrit.opencord.org/#/c/14476/

Depends on commit: https://gerrit.opencord.org/#/c/14474/

Change-Id: I3f3087e636a85bb0fb225939ef11004d53873fe0
diff --git a/python/adapters/openolt/openolt_platform.py b/python/adapters/openolt/openolt_platform.py
index d39afc7..5193789 100644
--- a/python/adapters/openolt/openolt_platform.py
+++ b/python/adapters/openolt/openolt_platform.py
@@ -78,7 +78,7 @@
 
 class OpenOltPlatform(object):
     MAX_PONS_PER_OLT = 16
-    MAX_ONUS_PER_PON = 32
+    MAX_ONUS_PER_PON = 64
     MAX_UNIS_PER_ONU = 16
 
     def __init__(self, log, resource_mgr):