Check OPENSSL_NO_SM4 before using sm4 encryption #11
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apache/incubator-pegasus#1575
Cherry-pick from tikv@9464766
In some env, user installed openssl by yum install, and the openssl software may compiled with OPENSSL_NO_SM4 flag, so although the version is >= 1.1.1, but we still could not use sm4 in that situation.