CHROMIUM: Revert "ath10k: fix DMA related firmware crashes on multiple devices"

This reverts commit 76d164f5.
This change fixed PCIE error which caused by DMA Read crossing 4K
boundary

BUG=b:137525452
TEST=QCA9888 with multiple STAs on Veriwave setup

Signed-off-by: Zhi Chen <zhichen@codeaurora.org&gt;"">
Change-Id: I78dc2569940266b30f34964f5c05ea5fc2a916d9
Signed-off-by: Zhonglin Zhang <zhonglin@codeaurora.org>
Signed-off-by: Vamsi Singamsetty <vamssi@codeaurora.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/1708545


Reviewed-by: Julan Hsu <julanhsu@google.com>
Tested-by: Julan Hsu <julanhsu@google.com>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>