Add some missing 1.6 changelog entries.

These packages had security fixes, but no DSA:s.

debian/changelog

@@ -3,8 +3,10 @@ tails (1.6) unstable; urgency=medium
   * Security fixes
     - Upgrade Tor Browser to 5.0.3. (Closes: #10223)
     - Upgrade bind9-based packages to 1:9.8.4.dfsg.P1-6+nmu2+deb7u7.
+    - Upgrade liblcms1 to 1.19.dfsg2-1.2+deb7u1.
     - Upgrade libldap-2.4-2 to 2.4.31-2+deb7u1.
     - Upgrade libslp1 to 1.2.1-9+deb7u1.
+    - Upgrade ssl-cert to 1.0.32+deb7u1.
 
   * Bugfixes
     - Fix a corner case for the MAC spoofing panic mode. If panic mode