Revert "ion: msm: plumb ION_HEAP_TYPE_DMA to core Ion"

This reverts commit 2630cd8c22dc1dcbb2420f8be62fd9b468c11871.

Change-Id: Ib3beccd66edb6b84fe212c16492a9ccaa4751aa2
Merge "Revert "ion: msm: plumb ION_HEAP_TYPE_DMA to core Ion"" into lollipop