[VOL-1348] EPON tech profile support

Change-Id: I5dfbc17fe6787f255d22d0b5d640bc636bfb172d
diff --git a/go.sum b/go.sum
index 827bbb6..a1dbbd9 100644
--- a/go.sum
+++ b/go.sum
@@ -204,8 +204,8 @@
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/gomega v1.4.2 h1:3mYCb7aPxS/RU7TI1y4rkEn1oKmPRjNJLNEXgw7MH2I=
 github.com/onsi/gomega v1.4.2/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
-github.com/opencord/voltha-lib-go/v3 v3.1.19 h1:WrjN/qi1pQCszoSTlf4jr7hBfKuma7Xeaq/a6V+nsa4=
-github.com/opencord/voltha-lib-go/v3 v3.1.19/go.mod h1:sa508HZ5vlOauh0i+WC0XFX1JZnfHtJqNIms5XBT/Z0=
+github.com/opencord/voltha-lib-go/v3 v3.1.20 h1:TXSz3mivOShau8YkKvXOQrWMWyjqZTnzG/+1U6+2r5Y=
+github.com/opencord/voltha-lib-go/v3 v3.1.20/go.mod h1:sa508HZ5vlOauh0i+WC0XFX1JZnfHtJqNIms5XBT/Z0=
 github.com/opencord/voltha-protos/v3 v3.3.9 h1:BnfDN9oaRBgyAiH9ZN7LpBpEJYxjX/ZS7R4OT2hDrtY=
 github.com/opencord/voltha-protos/v3 v3.3.9/go.mod h1:nl1ETp5Iw3avxOaKD8BJlYY5wYI4KeV95aT1pL63nto=
 github.com/opentracing/opentracing-go v1.1.0 h1:pWlfV3Bxv7k65HYwkikxat0+s3pV4bsqf19k25Ur8rU=