Updating Dockerfile & .gitreview

Moving maintainer to ONAP
Updating Label to ONAP & SO
.gitreview pointing to so.git

Change-Id: I9fe96f88cb742cefd6ddc7fbdd4f25f264e3e0be
Signed-off-by: JulienBe <jb379x@att.com>
diff --git a/.gitreview b/.gitreview
index 22476ab..3a5f50e 100644
--- a/.gitreview
+++ b/.gitreview
@@ -1,4 +1,4 @@
 [gerrit]
 host=gerrit.onap.org
 port=29418
-project=mso.git
+project=so.git