drivers: dma: stm32 dma driver for a new dma version

This is the dma V2bis which is particular DMA V2 instance for
stm32F1 and STM32L1 soc series. This DMA does not use the dma slot
Otherwise it is similar to version V2.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
3 files changed