Docs: Update for new build system

Update docs to use new build commands. Document new build options Remove
mentions of manifest generation. Remove mentions of hex file generation.

Signed-off-by: Anton Komlev <anton.komlev@arm.com>
Change-Id: I01c49c462403468c3e3650534893160cdfb6f5c5
diff --git a/docs/reference/services/tfm_secure_partition_addition.rst b/docs/reference/services/tfm_secure_partition_addition.rst
index 9a5663d..a9c3759 100644
--- a/docs/reference/services/tfm_secure_partition_addition.rst
+++ b/docs/reference/services/tfm_secure_partition_addition.rst
@@ -59,7 +59,6 @@
 - `Add source folder`_
 - `Add manifest`_
 - `Add configuration`_
-- `Generate files`_
 - `Implement the RoT services`_
 
 Add source folder
@@ -263,20 +262,11 @@
 
 Add CMake configure files
 -------------------------
-Two CMake configure files need to be added:
-
-- CMakeLists.inc, which is used to add the definition of what files are needed
-  to build.
 - CMakeLists.txt, which is the compilation configuration for this module.
 
-.. Note::
-   The CMakeLists.inc is not mandatory, the user can put everything in
-   CMakeLists.txt.
-
 The current CMake configuration should also be updated, by updating
-CommonConfig.cmake to include the definition of the newly introduced partition
+config_default.cmake to include the definition of the newly introduced partition
 and adding the relevant subdirectoy in ``secure_fw/CMakeLists.txt``.
-
 Please refer to the source code of TF-M for more detail.
 
 Update manifest list
@@ -311,16 +301,10 @@
       "pid": 256
     }
 
-Generate files
-==============
-After finishing the configuration works, the user needs to generate necessary
-files from manifest by using TF-M tools.
-
-.. code-block:: bash
-
-   cd <base folder>
-   cd trusted-firmware-m
-   python ./tools/tfm_parse_manifest_list.py
+.. Note::
+   The manifest configuration can be placed in a different external manifest
+   list. In this case, the cmake variable TFM_EXTRA_MANIFEST_LIST_PATH should be
+   set to the path of the external manifest list.
 
 Implement the RoT services
 ==========================