samples: bluetooth: mesh: Add nRF54L15DK to dfu_ext_flash CI

Added missing nRF54L15DK platforms to dfu_ext_flash variant
CI configuration for both target and distributor samples.

Signed-off-by: Stine Åkredalen <[email protected]>

Author: akredalen

samples/bluetooth/mesh/dfu/distributor/sample.yaml

@@ -37,8 +37,10 @@ tests:
     build_only: true
     integration_platforms:
       - nrf52840dk/nrf52840
+      - nrf54l15dk/nrf54l15/cpuapp
     platform_allow:
       - nrf52840dk/nrf52840
+      - nrf54l15dk/nrf54l15/cpuapp
     extra_args: FILE_SUFFIX=dfu_ext_flash
     tags:
       - bluetooth

samples/bluetooth/mesh/dfu/target/sample.yaml

@@ -23,8 +23,10 @@ tests:
     build_only: true
     integration_platforms:
       - nrf52840dk/nrf52840
+      - nrf54l15dk/nrf54l15/cpuapp
     platform_allow:
       - nrf52840dk/nrf52840
+      - nrf54l15dk/nrf54l15/cpuapp
     extra_args: FILE_SUFFIX=dfu_ext_flash
     tags:
       - bluetooth