Update ChangeLog

Ron Eldor · Ron Eldor · commit 8a6917dc67ec · 2018-11-27T10:37:02.000+02:00
Update the ChangeLog with the fix.
diff --git a/ChangeLog b/ChangeLog
@@ -1,5 +1,11 @@
 mbed TLS ChangeLog (Sorted per branch, date)
 
+= mbed TLS x.xx.x branch released xxxx-xx-xx
+
+Bugfix
+   * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
+     Fixes #2190.
+
 = mbed TLS 2.14.0 branch released 2018-11-19
 
 Security
