msm: sps: change the default device configuration

Most future targets will not be equipped with BAM DMA module. Thus,
adjust the default configuration in the driver to indicate the
absense of BAM DMA module.

Change-Id: Iace7353bd74c2d7962c5890ae72ab95a6fe948bf
Signed-off-by: Yan He <yanhe@codeaurora.org>