BUG/MINOR: ssl: ocsp structure not freed properly in case of error

In case of error, the ocsp item might already be in the ocsp certificate
tree but simply freed instead of destroyed through ssl_sock_free_ocsp.

This patch can be backported to all stable versions.

(cherry picked from commit aa529f776d)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>

src/ssl_sock.c

@@ -1594,7 +1594,7 @@ out:
 		OCSP_CERTID_free(cid);
 
 	if (ocsp)
-		free(ocsp);
+		ssl_sock_free_ocsp(ocsp);
 
 	if (warn)
 		free(warn);