gpu: ion: __dma_page_cpu_to_dev -> arm_dma_ops.sync_single_for_device hack

Signed-off-by: Arve Hjønnevåg <arve@android.com>
[jstultz: modified patch to apply to staging directory]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/android/ion/ion_chunk_heap.c
Simple merge

diff --cc drivers/staging/android/ion/ion_page_pool.c
Simple merge

diff --cc drivers/staging/android/ion/ion_system_heap.c
Simple merge