BUILD: ssl: introduce fine guard for OpenSSL specific SCTL functions

SCTL (signed certificate timestamp list) specified in RFC6962
was implemented in c74ce24cd22e8c683ba0e5353c0762f8616e597d, let
us introduce macro HAVE_SSL_SCTL for the HAVE_SSL_SCTL sake,
which in turn is based on SN_ct_cert_scts, which comes in the same commit

(cherry picked from commit c47d676bd75e339f92faae430486ee337c45f134)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
diff --git a/src/ssl_ckch.c b/src/ssl_ckch.c
index c8a2835..7803a87 100644
--- a/src/ssl_ckch.c
+++ b/src/ssl_ckch.c
@@ -320,7 +320,7 @@
 		goto end;
 	}
 
-#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
+#ifdef HAVE_SSL_SCTL
 	/* try to load the sctl file */
 	if (global_ssl.extra_files & SSL_GF_SCTL) {
 		struct stat st;
@@ -937,7 +937,7 @@
 	CERT_TYPE_OCSP,
 #endif
 	CERT_TYPE_ISSUER,
-#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
+#ifdef HAVE_SSL_SCTL
 	CERT_TYPE_SCTL,
 #endif
 	CERT_TYPE_MAX,
@@ -954,7 +954,7 @@
 #if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) || defined OPENSSL_IS_BORINGSSL)
 	[CERT_TYPE_OCSP]   = { "ocsp",    CERT_TYPE_OCSP,     &ssl_sock_load_ocsp_response_from_file },
 #endif
-#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
+#ifdef HAVE_SSL_SCTL
 	[CERT_TYPE_SCTL]   = { "sctl",    CERT_TYPE_SCTL,     &ssl_sock_load_sctl_from_file },
 #endif
 	[CERT_TYPE_ISSUER] = { "issuer",  CERT_TYPE_ISSUER,   &ssl_sock_load_issuer_file_into_ckch },