samples: drivers: mbox and ipc: fails as nrf54l15dk

[nordic-piks]

Describe the bug Tests fails:

• samples/drivers/mbox/sample.drivers.mbox.nrf54l15_remote_no_multithreading
• samples/drivers/mbox/sample.drivers.mbox.nrf54l15
• samples/subsys/ipc/ipc_service/icmsg/sample.ipc.icmsg.nrf54l15_no_multithreading
• samples/drivers/mbox/sample.drivers.mbox.nrf54l15_no_multithreading
• samples/subsys/ipc/ipc_service/icmsg/sample.ipc.icmsg.nrf54l15_remote_no_multithreading

Observed for nrf54l15dk/nrf54l15/cpuapp.

To Reproduce

Steps to reproduce the behavior:

1. have nrf54l15dk/nrf54l15/cpuapp connected
2. go to your zephyr dir
3. call ./scripts/twister -T samples/subsys/ipc -p nrf54l15dk/nrf54l15/cpuapp --device-testing --device-serial /dev/ttyACM0 -v --inline-logs
4. See console output with error

Impact Not clear

Example log from samples/subsys/ipc/ipc_service/icmsg/sample.ipc.icmsg.nrf54l15_remote_no_multithreading Logs and console output

*** Booting Zephyr OS build v3.7.0-3563-g24851026064d ***
[00:00:00.432,289] <inf> host: IPC-service HOST demo started

Environment (please complete the following information):

• OS: Ubuntu 20.04.1 LTS
• Toolchain Zephyr SDK 0.16.8
• Commit SHA or Version used: v3.7.0-3563-g24851026064d

[nordic-piks]

Triaged internally