wda: allow agggregation parameter configuration

wda: allow agggregation parameter configuration

ALlow configuration protocol and parameters in up and downstream
direction.

For this to work, the data link layer has to be configured using the
RMNet layer.

Link: https://docs.kernel.org/networking/device_drivers/cellular/qualcomm/rmnet.html
Signed-off-by: David Bauer <[email protected]>