Adding accessor for integer tech codes to Tag

Change-Id: I02c272acc9744756677afa8a9d1dca7f1e63ca50

core/java/android/nfc/Tag.java

@@ -203,6 +203,14 @@ public final class Tag implements Parcelable {
         return mServiceHandle;
     }
 
+    /**
+     * For use by NfcService only.
+     * @hide
+     */
+    public int[] getTechCodeList() {
+        return mTechList;
+    }
+
     /**
      * Get the Tag Identifier (if it has one).
      * <p>The tag identifier is a low level serial number, used for anti-collision