Add SPI slave mode support #372

Job	Run time
Check CMake usage (NUCLEO_F091RC)	38s
Check CMake usage (NUCLEO_F103RB)	37s
Check CMake usage (NUCLEO_F207ZG)	39s
Check CMake usage (NUCLEO_F303RE)	39s
Check CMake usage (NUCLEO_F411RE)	43s
Check CMake usage (NUCLEO_F767ZI)	42s
Check CMake usage (NUCLEO_G0B1RE)	40s
Check CMake usage (NUCLEO_G474RE)	45s
Check CMake usage (NUCLEO_H563ZI)	40s
Check CMake usage (NUCLEO_H743ZI2)	47s
Check CMake usage (NUCLEO_L073RZ)	41s
Check CMake usage (NUCLEO_L152RE)	40s
Check CMake usage (NUCLEO_L476RG)	39s
Check CMake usage (NUCLEO_L552ZE_Q)	46s
Check CMake usage (NUCLEO_U575ZI_Q)	42s
Check CMake usage (P_NUCLEO_WB55RG)	40s
Check CMake usage (NUCLEO_WL55JC1)	42s
	11m 40s

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