[VOL-4741] openonuAdapterGo: Make OMCI message set support configurable

Change-Id: Icb0dafd2b42f9d544f17bdb72ca9c5860604e0af
diff --git a/internal/pkg/core/device_handler.go b/internal/pkg/core/device_handler.go
index 641bd28..af7fef3 100755
--- a/internal/pkg/core/device_handler.go
+++ b/internal/pkg/core/device_handler.go
@@ -4516,6 +4516,11 @@
 	return dh.pOpenOnuAc.MetricsEnabled
 }
 
+// GetExtendedOmciSupportEnabled - TODO: add comment
+func (dh *deviceHandler) GetExtendedOmciSupportEnabled() bool {
+	return dh.pOpenOnuAc.ExtendedOmciSupportEnabled
+}
+
 // InitPmConfigs - TODO: add comment
 func (dh *deviceHandler) InitPmConfigs() {
 	dh.pmConfigs = &voltha.PmConfigs{}