nrf_security: Doc updates for mbed TLS 3.0.0

-Adds chapters on PSA crypto driver configurations
-Adds chapter on legacy crypto configurations
-Remove chapter on gluing
-Removed table-entries for Original Mbed TLS only since we don't
 expose Original Mbed TLS as a configurable backend in
 scope of legacy crypto support
-Removes references to glue and any configurations for
 (multiple) backends in legacy scope

ref: NCSDK-12816

Signed-off-by: Frank Audun Kvamtrø <[email protected]>
Signed-off-by: Bartosz Gentkowski <[email protected]>

nrf_security/README.rst

@@ -5,25 +5,18 @@ Nordic Security Module
 ######################
 
 The Nordic Security Module (nrf_security) provides an integration between Mbed TLS and software libraries that provide hardware-accelerated cryptographic functionality on selected Nordic Semiconductor SoCs as well as alternate software-based implementations of the Mbed TLS APIs.
-This module includes an Mbed TLS glue layer to enable both hardware-accelerated and software-based Mbed TLS implementation at the same time.
+This module includes a PSA driver abstraction layer to enable both hardware-accelerated and software-based implementation at the same time.
 
 The nrf_security module can interface with the :ref:`nrf_cc3xx_mbedcrypto_readme`.
 This library conforms to the specific revision of Mbed TLS that is supplied through the nRF Connect SDK.
 
-Prerequisites
-*************
-
-Mbed TLS is required and usually provided by west, but it can also be
-manually configured with the CMake variable ``ARM_MBEDTLS_PATH``.
-
 .. toctree::
    :maxdepth: 2
    :caption: Subpages:
 
    doc/configuration
-   doc/backends
-   doc/glue_layer
-   doc/backend_config
-   doc/adv_backend_config
+   doc/drivers
+   doc/driver_config
    doc/mbed_tls_header
+   doc/backend_config
    doc/api