docs: TLS 1.3: Swap prototype upstreaming status and MVP definition

Signed-off-by: Ronald Cron <ronald.cron@arm.com>

docs/architecture/tls13-support.md

@@ -14,55 +14,6 @@ itself based on a version of the development branch that we aim to keep as
 recent as possible (ideally the head) by merging regularly commits of the
 development branch into the prototype.
 
-Status
-------
-
-The following lists which parts of the TLS 1.3 prototype have already been upstreamed
-together with their level of testing:
-
-* TLS 1.3 record protection mechanisms
-
-  The record protection routines `mbedtls_ssl_{encrypt|decrypt}_buf()` have been extended
-  to support the modified TLS 1.3 record protection mechanism, including modified computation
-  of AAD, IV, and the introduction of a flexible padding.
-
-  Those record protection routines have unit tests in `test_suite_ssl` alongside the
-  tests for the other record protection routines.
-
-  TODO: Add some test vectors from RFC 8448.
-
-- The HKDF key derivation function on which the TLS 1.3 key schedule is based,
-  is already present as an independent module controlled by `MBEDTLS_HKDF_C`
-  independently of the development of the TLS 1.3 prototype.
-
-- The TLS 1.3-specific HKDF-based key derivation functions (see RFC 8446):
-  * HKDF-Expand-Label
-  * Derive-Secret
-  - Secret evolution
-  * The traffic {Key,IV} generation from secret
-  Those functions are implemented in `library/ssl_tls13_keys.c` and
-  tested in `test_suite_ssl` using test vectors from RFC 8448 and
-  https://tls13.ulfheim.net/.
-
-- New TLS Message Processing Stack (MPS)
-
-  The TLS 1.3 prototype is developed alongside a rewrite of the TLS messaging layer,
-  encompassing low-level details such as record parsing, handshake reassembly, and
-  DTLS retransmission state machine.
-
-  MPS has the following components:
-  - Layer 1 (Datagram handling)
-  - Layer 2 (Record handling)
-  - Layer 3 (Message handling)
-  - Layer 4 (Retransmission State Machine)
-  - Reader  (Abstracted pointer arithmetic and reassembly logic for incoming data)
-  - Writer  (Abstracted pointer arithmetic and fragmentation logic for outgoing data)
-
-  Of those components, the following have been upstreamed
-  as part of `MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL`:
-
-  - Reader ([`library/mps_reader.h`](../../library/mps_reader.h))
-
 
 MVP definition
 --------------
@@ -227,6 +178,57 @@ MVP definition
     response to the MVP ClientHello, server sending a CertificateRequest
     message ...
 
+
+Status
+------
+
+The following lists which parts of the TLS 1.3 prototype have already been upstreamed
+together with their level of testing:
+
+* TLS 1.3 record protection mechanisms
+
+  The record protection routines `mbedtls_ssl_{encrypt|decrypt}_buf()` have been extended
+  to support the modified TLS 1.3 record protection mechanism, including modified computation
+  of AAD, IV, and the introduction of a flexible padding.
+
+  Those record protection routines have unit tests in `test_suite_ssl` alongside the
+  tests for the other record protection routines.
+
+  TODO: Add some test vectors from RFC 8448.
+
+- The HKDF key derivation function on which the TLS 1.3 key schedule is based,
+  is already present as an independent module controlled by `MBEDTLS_HKDF_C`
+  independently of the development of the TLS 1.3 prototype.
+
+- The TLS 1.3-specific HKDF-based key derivation functions (see RFC 8446):
+  * HKDF-Expand-Label
+  * Derive-Secret
+  - Secret evolution
+  * The traffic {Key,IV} generation from secret
+  Those functions are implemented in `library/ssl_tls13_keys.c` and
+  tested in `test_suite_ssl` using test vectors from RFC 8448 and
+  https://tls13.ulfheim.net/.
+
+- New TLS Message Processing Stack (MPS)
+
+  The TLS 1.3 prototype is developed alongside a rewrite of the TLS messaging layer,
+  encompassing low-level details such as record parsing, handshake reassembly, and
+  DTLS retransmission state machine.
+
+  MPS has the following components:
+  - Layer 1 (Datagram handling)
+  - Layer 2 (Record handling)
+  - Layer 3 (Message handling)
+  - Layer 4 (Retransmission State Machine)
+  - Reader  (Abstracted pointer arithmetic and reassembly logic for incoming data)
+  - Writer  (Abstracted pointer arithmetic and fragmentation logic for outgoing data)
+
+  Of those components, the following have been upstreamed
+  as part of `MBEDTLS_SSL_PROTO_TLS1_3`:
+
+  - Reader ([`library/mps_reader.h`](../../library/mps_reader.h))
+
+
 Coding rules checklist for TLS 1.3
 ----------------------------------