Update [app] to [common] in configs.

Change-Id: Ieb81dbcb9ac592227133f3e80adcc032d7232f25
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1557
Reviewed-by: Michael Blow <mblow@apache.org>
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
BAD: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/asterixdb/asterix-server/src/main/opt/ansible/conf/cc.conf b/asterixdb/asterix-server/src/main/opt/ansible/conf/cc.conf
index 4887732..e779dc2 100644
--- a/asterixdb/asterix-server/src/main/opt/ansible/conf/cc.conf
+++ b/asterixdb/asterix-server/src/main/opt/ansible/conf/cc.conf
@@ -15,7 +15,7 @@
 ; specific language governing permissions and limitations
 ; under the License.
 
-[app]
+[common]
 log.level=INFO
 
 [nc]