Document releases APIs were deprecated in

Change-Id: I240ce9155fd6aee0200350e1b04d13ebfb89b3c1
diff --git a/core/api/src/main/java/org/onosproject/net/OchSignal.java b/core/api/src/main/java/org/onosproject/net/OchSignal.java
index 93ec6f8..09fd0b9 100644
--- a/core/api/src/main/java/org/onosproject/net/OchSignal.java
+++ b/core/api/src/main/java/org/onosproject/net/OchSignal.java
@@ -101,7 +101,7 @@
      * @param maxFrequency maximum frequency
      * @param grid grid spacing frequency
      *
-     * @deprecated in Emu (ONOS 1.4).
+     * @deprecated 1.4.0 Emu Release
      */
     @Deprecated
     public OchSignal(int channel, Frequency maxFrequency, Frequency grid) {
@@ -114,6 +114,14 @@
         this.slotGranularity = (int) Math.round((double) grid.asHz() / ChannelSpacing.CHL_12P5GHZ.frequency().asHz());
     }
 
+    /**
+     * Creates OCh signal.
+     *
+     * @param centerFrequency frequency
+     * @param channelSpacing spacing
+     * @param slotGranularity granularity
+     * @deprecated 1.4.0 Emu Release
+     */
     @Deprecated
     public OchSignal(Frequency centerFrequency, ChannelSpacing channelSpacing, int slotGranularity) {
         this.gridType = DEFAULT_OCH_GRIDTYPE;