test_evp_cipher_pipeline(): Fix memory leaks on errors #1102

Job	Run time
jitter	2m 13s
run-checker (enable-asan enable-ubsan no-shared no-asm -DOPENSSL_SMALL_FOOTPRINT)	2m 15s
run-checker (no-dso)	2m 31s
run-checker (no-dynamic-engine)	2m 31s
run-checker (no-ec2m enable-fips)	2m 43s
run-checker (no-engine no-shared)	1m 40s
run-checker (no-err)	2m 42s
run-checker (no-filenames)	2m 43s
run-checker (enable-ubsan no-asm -DOPENSSL_SMALL_FOOTPRINT -fno-sanitize=alignment)	3m 3s
run-checker (no-module)	2m 30s
run-checker (no-ocsp)	2m 30s
run-checker (no-pinshared)	2m 31s
run-checker (no-srp)	2m 31s
run-checker (no-srtp)	2m 34s
run-checker (no-ts)	2m 41s
run-checker (no-integrity-only-ciphers)	2m 29s
run-checker (enable-weak-ssl-ciphers)	2m 39s
run-checker (enable-zlib)	2m 40s
run-checker (enable-pie)	2m 34s
	48m 0s

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