stm32f4xx SPI: fix template methods definitions and circular mode
stm32f4xx SPI: fix template methods definitions and circular mode

RostakaGmfun/theCore,forGGe/theCore,RostakaGmfun/theCore,forGGe/theCore,forGGe/theCore,RostakaGmfun/theCore,RostakaGmfun/theCore,forGGe/theCore