Add new license claim

Adding extra line that src files are part of RIC platform project.

Change-Id: Id2b467195bef2591f926fe56c003878380d465af
Signed-off-by: Roni Riska <roni.riska@nokia.com>
diff --git a/Dockerfile b/Dockerfile
index a481f6d..ec5fd57 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,10 @@
 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
-
+#
+#   This source code is part of the near-RT RIC (RAN Intelligent Controller)
+#   platform project (RICP).
+#
 # Start from golang v1.12 base image
 FROM golang:1.12 as gobuild