verify_algo_params(): Call SSL lib via EASYRSA_OPENSSL

verify_algo_params() expects errors when settings are not corrrect.
Therefore, is must not use easyrsa_openssl() meta-wrapper, which would
error out with a misleading error message.

Fixing this also ensures that the SAFE SSL config is not built prior
to EASYRSA_REQ_CN being set.

Signed-off-by: Richard T Bonhomme <tincantech@protonmail.com>

easyrsa3/easyrsa

@@ -4901,7 +4901,7 @@ verify_algo_params() {
 		"verify_algo_params - easyrsa_mktemp EASYRSA_ALGO_PARAMS"
 
 		# Create the required ecparams file
-		easyrsa_openssl ecparam -name "$EASYRSA_CURVE" \
+		"$EASYRSA_OPENSSL" ecparam -name "$EASYRSA_CURVE" \
 			-out "$EASYRSA_ALGO_PARAMS" \
 			1>/dev/null || die "\
 Failed to generate ecparam file (permissions?) at: