When building applications/hpf/gpio with -DSB_CONFIG_HPF_GPIO_BACKEND_ICMSG=y on nRF54L15 DK (NCS v3.2.4), the build fails with error: '__device_dts_ord_DT_N_NODELABEL_ipc0_ORD' undeclared. The boards/ directory only contains nrf54l15dk_nrf54l15_cpuflpr.conf and nrf54l15dk_nrf54l15_cpuflpr.overlay, but no cpuapp overlay to define and enable the ipc0 node. Is this a missing file in the sample?
[49/99] Building C object zephyr/soc/soc/nrf54l15/CMakeFiles/soc__nordic.dir/common/gpiote_nrfx.c.obj
ninja: build stopped: subcommand failed.
FAILED: _sysbuild/sysbuild/images/gpio-prefix/src/gpio-stamp/gpio-build C:/Users/YoshihiroGoto/ncs/gpio/build/_sysbuild/sysbuild/images/gpio-prefix/src/gpio-stamp/gpio-build
cmd.exe /C "cd /D C:\Users\YoshihiroGoto\ncs\gpio\build\gpio && C:\ncs\toolchains\fd21892d0f\opt\bin\cmake.exe --build ."
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\fd21892d0f\opt\bin\cmake.EXE' --build C:/Users/YoshihiroGoto/ncs/gpio/build
