ANDROID: staging: ion: use dma_[un]map_sg_attrs

The [un]map_dma_buf receives dma_buf_attachment by
parameter. The caller could set the dma_map_attrs
on dma_buf_attachment such as DMA_ATTR_SKIP_CPU_SYNC,
and expects that attributes are applied.
The dma_[un]map_sg is changed into dma_[un]map_sg_attrs
to send the attributes.

Bug: 151775080

Signed-off-by: Hyesoo Yu <hyesoo.yu@samsung.com>
Change-Id: Id5ca12ff120bfeac53a84ffad91e7a219e2180cd
(cherry picked from commit 16ce0bda52c9948d52e5676359b6cade2662580f)
Signed-off-by: Hridya Valsaraju <hridya@google.com>