dns/powerdns-recursor: fix build on 14.0-CURRENT (+ OpenSSL 3.0.9)

This fixes the way OpenSSL is detected (it now uses a non-deprecated function),
which is not available anymore on 14.0-CURRENT. Doesn't change anything for
previous versions of FreeBSD.

PR:		272232
Reported by:	tremere@cainites.net (maintainer)

dns/powerdns-recursor/files/patch-m4_pdns__check__libcrypto.m4

@@ -1,4 +1,4 @@
---- m4/pdns_check_libcrypto.m4.orig	2020-11-16 16:30:04 UTC
+--- m4/pdns_check_libcrypto.m4.orig	2023-03-27 15:08:37 UTC
 +++ m4/pdns_check_libcrypto.m4
 @@ -75,8 +75,10 @@ AC_DEFUN([PDNS_CHECK_LIBCRYPTO], [
          for ssldir in $ssldirs; do
@@ -13,3 +13,12 @@
                  LIBCRYPTO_LIBS="-lcrypto"
                  found=true
                  AC_MSG_RESULT([yes])
+@@ -108,7 +110,7 @@ AC_DEFUN([PDNS_CHECK_LIBCRYPTO], [
+     LIBS="$LIBCRYPTO_LIBS $LIBS"
+     CPPFLAGS="$LIBCRYPTO_INCLUDES $CPPFLAGS"
+     AC_LINK_IFELSE(
+-        [AC_LANG_PROGRAM([#include <openssl/crypto.h>], [ERR_load_CRYPTO_strings()])],
++        [AC_LANG_PROGRAM([#include <openssl/bn.h>], [BN_new()])],
+         [
+             AC_MSG_RESULT([yes])
+             AC_CHECK_FUNCS([RAND_bytes RAND_pseudo_bytes CRYPTO_memcmp OPENSSL_init_crypto EVP_MD_CTX_new EVP_MD_CTX_free RSA_get0_key])