openssl: match LibreSSL deinit with its init

Earlier we bumped LibreSSL to use modern initialization, but did not
touch deinitialization due to uncertainties [1]. Fix it in this patch.

Regression from bec0c5b curl#11611

[1] curl#11611 (comment)

Reported-by: Mike Hommey
Fixes curl#12525
Closes #xxxxx

lib/vtls/openssl.c

@@ -1753,7 +1753,7 @@ static int ossl_init(void)
 static void ossl_cleanup(void)
 {
 #if (OPENSSL_VERSION_NUMBER >= 0x10100000L) &&  \
-  !defined(LIBRESSL_VERSION_NUMBER)
+  (!defined(LIBRESSL_VERSION_NUMBER) || LIBRESSL_VERSION_NUMBER >= 0x2070000fL)
   /* OpenSSL 1.1 deprecates all these cleanup functions and
      turns them into no-ops in OpenSSL 1.0 compatibility mode */
 #else