`RISCV_ALWAYS_SWITCH_TRHOUGH_ECALL` is already enabled in SoC defconfig. Signed-off-by: Marcin Szymczyk <marcin.szymczyk@nordicsemi.no>
Add nRF54L15 FLPR core to nRF54L15PDK board configuration. Signed-off-by: Jakub Zymelka <jakub.zymelka@nordicsemi.no>