Update ChangeLog
Add an entry in ChangeLog describing the fix.
mbed TLS ChangeLog (Sorted per branch, date)
+= mbed TLS x.xx.x branch released xxxx-xx-xx
+
+Bugfix
+ * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
+ Raised as a comment in #1996.
+
= mbed TLS 2.14.0 branch released 2018-11-19
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