Fix memory leak in tls_parse_stoc_key_share
Fix memory leak in tls_parse_stoc_key_share

Found by oss-fuzz

Reviewed-by: Richard Levitte <5fb523282dd7956571c80524edc2dccfa0bd8234@openssl.org>
GH: #2102

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl