Update to omci-lib-go version 1.15.2

Change-Id: I383f643458f7edac5174408b5b3083afa6c584f6
diff --git a/go.sum b/go.sum
index d28d98f..862d5bb 100644
--- a/go.sum
+++ b/go.sum
@@ -219,8 +219,8 @@
 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/omci-lib-go v0.15.0 h1:ADbDnHOm+XwOZ8CwRY0XmVnFXl/VIdygIdh3iZkbk6E=
-github.com/opencord/omci-lib-go v0.15.0/go.mod h1:6OIHB14Ch5qGgHzwSWlMACtk5KFoLzQ4LAhdcy4jwvo=
+github.com/opencord/omci-lib-go v0.15.2 h1:RVqjVI0RvWlJb+n8NMWrIDt2J+o5L7JNkHZdHjpMLws=
+github.com/opencord/omci-lib-go v0.15.2/go.mod h1:6OIHB14Ch5qGgHzwSWlMACtk5KFoLzQ4LAhdcy4jwvo=
 github.com/opencord/voltha-lib-go/v4 v4.0.8 h1:QgcbvmTG917U89FdjchCckvLprETR3A8qnd4BInvRnA=
 github.com/opencord/voltha-lib-go/v4 v4.0.8/go.mod h1:n4QSYuNICFuQCQuTHf4N8Gh4ymOqPNbijqCD+sgSgJ4=
 github.com/opencord/voltha-protos/v4 v4.0.12 h1:x8drb8inaUByjVLFbXSiQwRTU//dfde0MKIHyKb1JMw=