Update pom.xml to depend on official onos-dependencies parent pom

This patch fixes the issues seen when trying to release the app,
and in general, when trying to execute maven stages other than
build/install.

ONOS stopped publishing onos-dependencies with version 2.2.0, thus
requiring each app to explicitly declare dependencies and plugins. The
following ONOS patch revamps support for building 3rd-party apps with
Maven, including publishing of the onos-dependencies (parent) pom:
https://gerrit.onosproject.org/#/c/22790/

The new onos-dependencies exposes shared Java dependencies as well as
Maven plugins, already configured to support the whole life-cycle of
apps (from build, to reporting and release).

Change-Id: Ia127861651b65bbf67e70375fb48317edab5ade8
diff --git a/app/src/main/java/org/opencord/olt/impl/Olt.java b/app/src/main/java/org/opencord/olt/impl/Olt.java
index 0aaa8bf..3775060 100644
--- a/app/src/main/java/org/opencord/olt/impl/Olt.java
+++ b/app/src/main/java/org/opencord/olt/impl/Olt.java
@@ -182,47 +182,47 @@
     protected StorageService storageService;
 
     /**
-     * Default VLAN RG<->ONU traffic
+     * Default VLAN RG<->ONU traffic.
      **/
     private int defaultVlan = DEFAULT_VLAN_DEFAULT;
 
     /**
-     * Create the DHCP Flow rules when a subscriber is provisioned
+     * Create the DHCP Flow rules when a subscriber is provisioned.
      **/
     protected boolean enableDhcpOnProvisioning = ENABLE_DHCP_ON_PROVISIONING_DEFAULT;
 
     /**
-     * Enable flows for DHCP v4
+     * Enable flows for DHCP v4.
      **/
     protected boolean enableDhcpV4 = ENABLE_DHCP_V4_DEFAULT;
 
     /**
-     * Enable flows for DHCP v6
+     * Enable flows for DHCP v6.
      **/
     protected boolean enableDhcpV6 = ENABLE_DHCP_V6_DEFAULT;
 
     /**
-     * Create IGMP Flow rules when a subscriber is provisioned
+     * Create IGMP Flow rules when a subscriber is provisioned.
      **/
     protected boolean enableIgmpOnProvisioning = ENABLE_IGMP_ON_PROVISIONING_DEFAULT;
 
     /**
-     * Deleting Meters based on flow count statistics
+     * Deleting Meters based on flow count statistics.
      **/
     protected boolean deleteMeters = DELETE_METERS_DEFAULT;
 
     /**
-     * Default technology profile id that is used for authentication trap flows
+     * Default technology profile id that is used for authentication trap flows.
      **/
     protected int defaultTechProfileId = DEFAULT_TP_ID_DEFAULT;
 
     /**
-     * Default bandwidth profile id that is used for authentication trap flows
+     * Default bandwidth profile id that is used for authentication trap flows.
      **/
     protected String defaultBpId = DEFAULT_BP_ID_DEFAULT;
 
     /**
-     * Send EAPOL authentication trap flows before subscriber provisioning
+     * Send EAPOL authentication trap flows before subscriber provisioning.
      **/
     protected boolean enableEapol = ENABLE_EAPOL_DEFAULT;