stm32: Fix dma_nohal_init for H7.
stm32: Fix dma_nohal_init for H7.

iabdalkader/openmv,openmv/openmv,kwagyeman/openmv,kwagyeman/openmv,iabdalkader/openmv,kwagyeman/openmv,iabdalkader/openmv,openmv/openmv,iabdalkader/openmv,openmv/openmv,openmv/openmv,kwagyeman/openmv