Add new cell for sw_done/sw_done_selector, because PDM need enable software done feature in sdma script. The new fourth cell defined as below: Bit31: sw_done Bit15~bit0: selector For example: 0x80000000 means sw_done enabled for done0 sector which is for PDM on i.mx8mm. Signed-off-by: Robin Gong <yibin.gong@nxp.com> Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>