drivers: dma: channel configuration for dma_stm32

Control values when configuring the dma channel
According to the soc specification,
the dma V2 channel counts from 1.
the dma V1 stream counts from 0.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2 files changed