Fix wrong length limit in GCM
See for example page 8 of
http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf
The previous constant probably came from a typo as it was 2^26 - 2^5 instead
of 2^36 - 2^5. Clearly the intention was to allow for a constant bigger than
2^32 as the ull suffix and cast to uint64_t show.
fixes #362
diff --git a/ChangeLog b/ChangeLog
index bf31b70..5701cf5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
mbed TLS ChangeLog (Sorted per branch, date)
+= mbed TLS 1.3.16 released 2015-12-xx
+
+Bugfix
+ * Fix over-restricive length limit in GCM. Found by Andreas-N. #362
+
= mbed TLS 1.3.15 released 2015-11-04
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