linux-phytec-ti

dmaengine: ti: k3-udma: Make sure that extra flows are disabled for rchan

The reset value of FLOWID_CNT in RCHAN_RFLOW_RNG register is 0x4000. If
no extra flows are desired for the rchan this has to be reset to 0.

With DMAengine we do not use rflow at the moment so make sure that both
flowid_cnt and flowid_start is reset to 0.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>