Device Key Javadoc fix

Change-Id: I9e393c5a252996a17026235cc7299eb0211dc566
diff --git a/core/api/src/main/java/org/onosproject/net/key/DeviceKey.java b/core/api/src/main/java/org/onosproject/net/key/DeviceKey.java
index 7511735..4677cc7 100644
--- a/core/api/src/main/java/org/onosproject/net/key/DeviceKey.java
+++ b/core/api/src/main/java/org/onosproject/net/key/DeviceKey.java
@@ -129,10 +129,10 @@
     /**
      * Method to create a device key of type USERNAME_PASSWORD.
      *
-     * @param id    device key identifier
-     * @param label optional label for this device key
-     * @param username username for this device key
-     * @param password password for this device key
+     * @param id       device key identifier
+     * @param label    optional label for this device key
+     * @param username username for accessing this device
+     * @param password password for accessing this device
      * @return device key
      */
     public static DeviceKey createDeviceKeyUsingUsernamePassword(DeviceKeyId id, String label,
@@ -146,15 +146,15 @@
     /**
      * Method to create a device key of type SSL_KEY.
      *
-     * @param id    device key identifier
-     * @param label optional label for this device key
-     * @param username username for this device key
-     * @param password password for this device key
-     * @param sshkey sshkey for this device key
+     * @param id       device key identifier
+     * @param label    optional label for this device key
+     * @param username username for accessing this device
+     * @param password password for accessing this device SSH key
+     * @param sshkey   SSH key for accessing this device
      * @return device key
      */
     public static DeviceKey createDeviceKeyUsingSshKey(DeviceKeyId id, String label,
-                                                                 String username, String password, String sshkey) {
+                                                       String username, String password, String sshkey) {
         DefaultAnnotations annotations = builder().set(AnnotationKeys.USERNAME, username)
                 .set(AnnotationKeys.PASSWORD, password)
                 .set(AnnotationKeys.SSHKEY, sshkey).build();