Always Use EVP_aes_*_ctr() with openssl 1.1

(OpenSSL 1.1 makes EVP_CIPHER_CTX opaque, _and_ adds acceleration
for counter mode on more architectures.  So it won't work if we try
the older approach, and it might help if we try the newer one.)

Fixes bug 20588.

1 files changed, 3 insertions, 0 deletions

diff --git a/changes/bug20588 b/changes/bug20588
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+  o Minor bugfixes (portability):
+    - Fix compilation with OpenSSL 1.1 and less commonly-used
+      CPU architectures. Closes ticket 20588.