test: disable SignalsWaitOperationsTestCase if config is not suitable
test: disable SignalsWaitOperationsTestCase if config is not suitable

SignalsWaitOperationsTestCase requires
CONFIG_MAIN_THREAD_CAN_RECEIVE_SIGNALS option to be defined.
DISTORTEC/distortos,jasmin-j/distortos,jasmin-j/distortos,jasmin-j/distortos,DISTORTEC/distortos,DISTORTEC/distortos,CezaryGapinski/distortos,jasmin-j/distortos,jasmin-j/distortos,CezaryGapinski/distortos,CezaryGapinski/distortos,CezaryGapinski/distortos,CezaryGapinski/distortos,DISTORTEC/distortos