linux-imx

sdk_dpaa: ceetm: lower the default congestion thresholds

The congestion thresholds need to be set in such a way that:
    a) the threshold is high enough so that frames aren't dropped
    unnecessarily
    b) the threshold is low enough so that the latency isn't too big

The current thresholds are set too high. In forwarding scenarios, the
latency is too large and frames are dropped on ingress due to a lack of
buffers.

Signed-off-by: Camelia Groza <camelia.groza@nxp.com>