Bug 2388: Set node reference into OFPT_ERROR notification.

(cherry picked from commit 4107a95584fb2cd2d9f067daa44fcd1594c35195)
Change-Id: I5b7f23c4029e8cf2c6458086c6cadc5ff22912ed
Signed-off-by: Shigeru Yasuda <s-yasuda@da.jp.nec.com>