Platform: Add support for BL5340 DVK

This adds supports for the Laird Connectivity BL5340 DVK (development kit)
application core, which is based on the nRF5340 SoC.

Signed-off-by: Jamie McCrae <jamie.mccrae@lairdconnect.com>
Change-Id: I062412918d4cbe692748c1a31fef444190f50661
diff --git a/docs/contributing/maintainers.rst b/docs/contributing/maintainers.rst
index ced48d1..8319d00 100644
--- a/docs/contributing/maintainers.rst
+++ b/docs/contributing/maintainers.rst
@@ -122,6 +122,12 @@
     :email: `Raymond.Ngunn@cypress.com <raymond.ngunn@cypress.com>`__
     :github: `RaymondNgun <https://github.com/RaymondNgun>`__
 
+Laird Connectivity Platforms:
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Jamie McCrae
+    :email: `Jamie.McCrae@lairdconnect.com <jamie.mccrae@lairdconnect.com>`__
+    :github: `thedjnk <https://github.com/thedjnk>`__
 
 Nordic Semiconductor Platforms
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/docs/integration_guide/tfm_integration_guide.rst b/docs/integration_guide/tfm_integration_guide.rst
index cf4fd2e..f6807e1 100644
--- a/docs/integration_guide/tfm_integration_guide.rst
+++ b/docs/integration_guide/tfm_integration_guide.rst
@@ -30,6 +30,7 @@
 - STM32L5xx: Cortex-M33 based platform (STM32L562 and STM32L552 socs)
 - nRF9160 DK (Cortex-M33)
 - nRF5340 DK (Cortex-M33 Application MCU)
+- BL5340 DVK (Cortex-M33 Application MCU)
 
 The files related to the supported platforms are contained under the
 ``platform`` subfolder. The platform specific files are under
@@ -64,6 +65,9 @@
 More information about the nRF9160 DK platform can be found in:
 `nRF9160 DK product page <https://www.nordicsemi.com/Software-and-tools/Development-Kits/nRF9160-DK>`__
 
+More information about the BL5340 platform can be found in:
+`BL5340 product page <https://www.lairdconnect.com/wireless-modules/bluetooth-modules/bluetooth-5-modules/bl5340-series-multi-core-bluetooth-52-802154-nfc-modules>`__
+
 Generic drivers and startup/scatter files
 =========================================
 The addition of a new platform means the creation of a new subfolder inside
diff --git a/docs/introduction/readme.rst b/docs/introduction/readme.rst
index 82e513f..c86889d 100644
--- a/docs/introduction/readme.rst
+++ b/docs/introduction/readme.rst
@@ -143,6 +143,8 @@
           <https://www.nordicsemi.com/Software-and-tools/Development-Kits/nRF9160-DK>`_
         - `nRF5340 DK (nordic_nrf/nrf5340dk_nrf5340_cpuapp).
           <https://www.nordicsemi.com/Software-and-tools/Development-Kits/nRF5340-DK>`_
+        - `BL5340 DVK (lairdconnectivity/bl5340_dvk_cpuapp).
+          <https://www.lairdconnect.com/wireless-modules/bluetooth-modules/bluetooth-5-modules/bl5340-series-multi-core-bluetooth-52-802154-nfc-modules>`_
 
     - Cortex-M23 system:
 
diff --git a/docs/technical_references/tfm_secure_boot.rst b/docs/technical_references/tfm_secure_boot.rst
index 36ea036..528e7b7 100644
--- a/docs/technical_references/tfm_secure_boot.rst
+++ b/docs/technical_references/tfm_secure_boot.rst
@@ -256,6 +256,8 @@
 +---------------------+-----------------+---------------+----------+----------------+--------------+
 | nRF5340 DK          | Yes             | Yes           | No       | No             | No           |
 +---------------------+-----------------+---------------+----------+----------------+--------------+
+| BL5340 DVK          | Yes             | Yes           | Yes      | No             | No           |
++---------------------+-----------------+---------------+----------+----------------+--------------+
 
 .. [1] To disable BL2, please set the ``BL2`` cmake option to ``OFF``