samples: bluetooth: fast_pair: input_device: add support for nRF54LM20

Added support for the nRF54LM20 board target in the
Fast Pair Input Device sample.

Jira: NCSDK-34260

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

Author: alstrzebonski

samples/bluetooth/fast_pair/input_device/boards/nrf54lm20dk_nrf54lm20a_cpuapp.conf

@@ -0,0 +1,25 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+# Align the advertised TX power with Fast Pair expectations.
+CONFIG_BT_ADV_PROV_TX_POWER_CORRECTION_VAL=-11
+
+# START of workaround for issue NCSDK-33313
+# Disable CRACEN for all but RNG and switch to software crypto.
+CONFIG_PSA_CRYPTO_DRIVER_OBERON=y
+CONFIG_PSA_CRYPTO_DRIVER_CRACEN=y
+
+CONFIG_PSA_USE_CRACEN_CIPHER_DRIVER=n
+CONFIG_PSA_USE_CRACEN_AEAD_DRIVER=n
+CONFIG_PSA_USE_CRACEN_HASH_DRIVER=n
+CONFIG_PSA_USE_CRACEN_MAC_DRIVER=n
+CONFIG_PSA_USE_CRACEN_KEY_AGREEMENT_DRIVER=n
+CONFIG_PSA_USE_CRACEN_ASYMMETRIC_ENCRYPTION_DRIVER=n
+CONFIG_PSA_USE_CRACEN_KEY_MANAGEMENT_DRIVER=n
+CONFIG_PSA_USE_CRACEN_KEY_DERIVATION_DRIVER=n
+CONFIG_PSA_USE_CRACEN_PAKE_DRIVER=n
+CONFIG_PSA_USE_CRACEN_ASYMMETRIC_SIGNATURE_DRIVER=n
+# END of workaround for issue NCSDK-33313

samples/bluetooth/fast_pair/input_device/sample.yaml

@@ -14,6 +14,7 @@ tests:
       - nrf54l15dk/nrf54l05/cpuapp
       - nrf54l15dk/nrf54l10/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
     platform_allow:
       - nrf52dk/nrf52832
@@ -23,6 +24,7 @@ tests:
       - nrf54l15dk/nrf54l05/cpuapp
       - nrf54l15dk/nrf54l10/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
     tags:
       - bluetooth