[nrf noup] sample/smp_svr: nrf54l15dk test cases

Added nrf54l15dk testcases as copies of nrf54l15pdk.

Signed-off-by: Andrzej Puzdrowski <[email protected]>

Author: nvlsianpu

samples/subsys/mgmt/mcumgr/smp_svr/sample.yaml

@@ -13,10 +13,12 @@ tests:
       - pinnacle_100_dvk
       - mg100
       - nrf54l15pdk/nrf54l15/cpuapp
+      - nrf54l15dk/nrf54l15/cpuapp
     integration_platforms:
       - nrf52dk/nrf52832
       - nrf52840dk/nrf52840
       - nrf54l15pdk/nrf54l15/cpuapp
+      - nrf54l15dk/nrf54l15/cpuapp
   sample.mcumgr.smp_svr.bt_static_svc:
     extra_args: OVERLAY_CONFIG="overlay-bt.conf"
     extra_configs:
@@ -127,3 +129,26 @@ tests:
       - nrf54l15pdk/nrf54l15/cpuapp
     integration_platforms:
       - nrf54l15pdk/nrf54l15/cpuapp
+  sample.mcumgr.smp_svr.bt.nrf54l15dk.ext_flash:
+    extra_args:
+      - OVERLAY_CONFIG="overlay-bt.conf"
+      - DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_ext_flash.overlay"
+      - mcuboot_CONF_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_ext_flash.conf"
+      - mcuboot_EXTRA_DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_ext_flash.overlay"
+    extra_configs:
+      - CONFIG_PM_OVERRIDE_EXTERNAL_DRIVER_CHECK=y
+    platform_allow:
+      - nrf54l15dk/nrf54l15/cpuapp
+    integration_platforms:
+      - nrf54l15dk/nrf54l15/cpuapp
+  sample.mcumgr.smp_svr.bt.nrf54l15dk.ext_flash.pure_dts:
+    extra_args:
+      - OVERLAY_CONFIG="overlay-bt.conf"
+      - DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_ext_flash.overlay"
+      - mcuboot_CONF_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_ext_flash.conf"
+      - mcuboot_EXTRA_DTC_OVERLAY_FILE="boards/nrf54l15dk_nrf54l15_cpuapp_ext_flash.overlay"
+      - SB_CONFIG_PARTITION_MANAGER=n
+    platform_allow:
+      - nrf54l15dk/nrf54l15/cpuapp
+    integration_platforms:
+      - nrf54l15dk/nrf54l15/cpuapp