Fix typo in opendaylight Dockerfile

Opendaylight container Dockerfile contains reference to variable
that is no longer defined (mysql instead of mariadb).

Change-Id: I8c159547a9e502471a75e6b4fd41d45cca41c954
Issue-ID: CCSDK-95
Signed-off-by: Dan Timoney <dtimoney@att.com>
diff --git a/opendaylight/src/main/docker/Dockerfile b/opendaylight/src/main/docker/Dockerfile
index afa912b..c35a746 100644
--- a/opendaylight/src/main/docker/Dockerfile
+++ b/opendaylight/src/main/docker/Dockerfile
@@ -14,6 +14,6 @@
 
 # workaround till we get proxy working
 RUN mkdir -p /opt/opendaylight/current/system/org/mariadb/jdbc/mariadb-java-client/${ccsdk.mariadb-connector-java.version}
-COPY mariadb-java-client-${ccsdk.mysql-connector-java.version}.jar /opt/opendaylight/current/system/org/mariadb/jdbc/mariadb-java-client/${ccsdk.mariadb-connector-java.version}
+COPY mariadb-java-client-${ccsdk.mariadb-connector-java.version}.jar /opt/opendaylight/current/system/org/mariadb/jdbc/mariadb-java-client/${ccsdk.mariadb-connector-java.version}
 # ENTRYPOINT exec /opt/opendaylight/current/bin/karaf
 EXPOSE 8181