ASoC: McBSP: get hw params from McBSP driver

Removed the use of macros to obtain base address and DMA channel number.
Instead use the McBSP driver API's that passes base address and DMA
channel number to the client driver.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>