Revert "drivers: dma-removed: introduce no-map-fixup"

This reverts commit c45ba77c.

The reverted patch is part of the unused no-map-fixup feature
which is being removed.

Change-Id: Ief4e2fc00ab1ea68f2cac941d8c897ea11a2694c
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>