doc: fast_pair: Describe nRF54LM20 support

Describes nRF54LM20 support in docs.

Jira: NCSDK-34262

Signed-off-by: Aleksander Strzebonski <[email protected]>

Author: alstrzebonski

doc/nrf/releases_and_maturity/software_maturity.rst

@@ -2275,18 +2275,21 @@ The following table indicates the software maturity levels of the support for Go
               - nRF54L05
               - nRF54L10
               - nRF54L15
+              - nRF54LM20
             * - **Input device**
               - :ref:`fast_pair_input_device`
               - Experimental
               - Experimental
               - Experimental
               - Experimental
+              - Experimental
             * - **Locator tag**
               - :ref:`fast_pair_locator_tag`
               - Experimental
               - Supported
               - Supported
               - Supported
+              - Experimental
       .. tab:: nRF91 Series
 
          .. list-table:: Google Fast Pair use case support
@@ -2397,31 +2400,37 @@ The following table indicates the software maturity levels of the support for ea
               - nRF54L05
               - nRF54L10
               - nRF54L15
+              - nRF54LM20
             * - **Initial pairing**
               - Experimental
               - Supported
               - Supported
               - Supported
+              - Experimental
             * - **Subsequent pairing**
               - Experimental
               - Experimental
               - Experimental
               - Experimental
+              - Experimental
             * - **Battery Notification extension**
               - Experimental
               - Experimental
               - Experimental
               - Experimental
+              - Experimental
             * - **Personalized Name extension**
               - Experimental
               - Experimental
               - Experimental
               - Experimental
+              - Experimental
             * - **Find My Device Network extension**
               - Experimental
               - Supported
               - Supported
               - Supported
+              - Experimental
       .. tab:: nRF91 Series
 
          .. list-table:: Google Fast Pair feature support

samples/bluetooth/fast_pair/locator_tag/README.rst

@@ -194,6 +194,7 @@ The configuration of the DFU solution varies depending on the board target:
 |              |                                | * ``nrf54l15dk/nrf54l05/cpuapp`` (only ``release`` configuration) |
 |              |                                | * ``nrf54l15dk/nrf54l10/cpuapp``                                  |
 |              |                                | * ``nrf54l15dk/nrf54l15/cpuapp``                                  |
+|              |                                | * ``nrf54lm20dk/nrf54lm20a/cpuapp``                               |
 +--------------+--------------------------------+-------------------------------------------------------------------+
 | MCUboot      | overwrite only mode            | * ``nrf5340dk/nrf5340/cpuapp``                                    |
 |              |                                | * ``nrf5340dk/nrf5340/cpuapp/ns``                                 |
@@ -231,6 +232,7 @@ The configuration of the signature algorithm and the public key storage solution
 | ED25519                        | * ``nrf54l15dk/nrf54l05/cpuapp`` (only ``release`` configuration) | Key Management Unit (KMU) | HW-accelerated (CRACEN),  |
 |                                | * ``nrf54l15dk/nrf54l10/cpuapp``                                  |                           | Signature derived from    |
 |                                | * ``nrf54l15dk/nrf54l15/cpuapp``                                  |                           | image (pure)              |
+|                                | * ``nrf54lm20dk/nrf54lm20a/cpuapp``                               |                           |                           |
 +--------------------------------+-------------------------------------------------------------------+---------------------------+---------------------------+
 
 .. note::