Move recordmethod.h to be an "internal" header

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19748)

ssl/record/record.h

@@ -10,7 +10,7 @@
 typedef struct ssl_connection_st SSL_CONNECTION;
 
 #include <openssl/core_dispatch.h>
-#include "recordmethod.h"
+#include "internal/recordmethod.h"
 
 /*****************************************************************************
  *                                                                           *

ssl/ssl_local.h

@@ -28,7 +28,7 @@
 # include <openssl/symhacks.h>
 # include <openssl/ct.h>
 # include "record/record.h"
-# include "record/recordmethod.h"
+# include "internal/recordmethod.h"
 # include "statem/statem.h"
 # include "internal/packet.h"
 # include "internal/dane.h"

test/sslbuffertest.c

@@ -16,7 +16,7 @@
 /* We include internal headers so we can check if the buffers are allocated */
 #include "../ssl/ssl_local.h"
 #include "../ssl/record/record_local.h"
-#include "../ssl/record/recordmethod.h"
+#include "internal/recordmethod.h"
 #include "../ssl/record/methods/recmethod_local.h"
 
 #include "internal/packet.h"

test/tls13encryptiontest.c

@@ -11,7 +11,7 @@
 #include <openssl/evp.h>
 #include "../ssl/ssl_local.h"
 #include "../ssl/record/record_local.h"
-#include "../ssl/record/recordmethod.h"
+#include "internal/recordmethod.h"
 #include "../ssl/record/methods/recmethod_local.h"
 #include "internal/nelem.h"
 #include "testutil.h"