[VOL-3142] Update dependency of voltha-lib-go to include log package registration fix

Change-Id: I36890c7aa685e46721b481d5c965f9c0bc86934c
diff --git a/vendor/github.com/uber/jaeger-client-go/.gitmodules b/vendor/github.com/uber/jaeger-client-go/.gitmodules
new file mode 100644
index 0000000..295ebcf
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-client-go/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "idl"]
+	path = idl
+	url = https://github.com/uber/jaeger-idl.git