Make internal header file names consistent

Libcrypto currently has a mess of *_lcl.h, *_locl.h, and *_local.h names
used for internal headers. Move all these headers we inherited from
OpenSSL to *_local.h, reserving the name *_internal.h for our own code.
Similarly, move dtls_locl.h and ssl_locl.h to dtls_local and ssl_local.h.
constant_time_locl.h is moved to constant_time.h since it's special.

Adjust all .c files in libcrypto, libssl and regress.

The diff is mechanical with the exception of tls13_quic.c, where
#include <ssl_locl.h> was fixed manually.

discussed with jsing,
no objection bcook

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libcrypto/rc2/rc2cfb64.c b/src/lib/libcrypto/rc2/rc2cfb64.c
index 95366444c4..ebdeb9ba54 100644
--- a/src/lib/libcrypto/rc2/rc2cfb64.c
+++ b/src/lib/libcrypto/rc2/rc2cfb64.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: rc2cfb64.c,v 1.5 2014/10/28 07:35:59 jsg Exp $ */
+/* $OpenBSD: rc2cfb64.c,v 1.6 2022/11/26 16:08:54 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -57,7 +57,7 @@
  */
 
 #include <openssl/rc2.h>
-#include "rc2_locl.h"
+#include "rc2_local.h"
 
 /* The input and output encrypted as though 64bit cfb mode is being
  * used.  The extra state information to record how much of the