samples: tfm_integration: tfm_ipc: add nucleo_l552ze_q_ns to the list

Add nucleo_l552ze_q_ns board to the allowed list of platforms
for the tfm_ipc sample. This allows the sample to be built for
the nucleo_l552ze_q_ns platform by sanity check.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
1 file changed