We cannot include any plat or mach headers for the multiplatform
support.

Fix the issue by defining local mcbsp_omap1().
Signed-off-by: NTony Lindgren <tony@atomide.com>
Acked-by: NJarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>