samples: bluetooth: Add support for nrf54lm20dk in peripheral_gatt_dm

Add support for nrf54lm20dk in peripheral_gatt_dm sample.

Jira: NCSDK-34453

Signed-off-by: Dominik Chat <[email protected]>

Author: dchat-nordic

samples/bluetooth/peripheral_gatt_dm/sample.yaml

@@ -14,6 +14,7 @@ tests:
       - nrf54l15dk/nrf54l10/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     platform_allow:
       - nrf52dk/nrf52832
       - nrf52840dk/nrf52840
@@ -23,6 +24,7 @@ tests:
       - nrf54l15dk/nrf54l10/cpuapp
       - nrf54l15dk/nrf54l15/cpuapp
       - nrf54h20dk/nrf54h20/cpuapp
+      - nrf54lm20dk/nrf54lm20a/cpuapp
     tags:
       - bluetooth
       - ci_build