MdeModulePkg/AtaAtapiPassThru: Revert patch to disable Bus Master

This patch caused Windows 10 S4 resume failure.
Considering the similar changes are reverted from PciBus driver,
revert the patch from AtaAtapiPassThru as well.

Revert "MdeModulePkg/AtaAtapiPassThru: disable only BM-DMA at
ExitBootServices()"
This reverts commit 76fd5a660d.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.h

@@ -123,7 +123,8 @@ typedef struct {
   LIST_ENTRY                        NonBlockingTaskList;
 
   //
-  // For disabling Bus Master DMA on the device at ExitBootServices().
+  // For disabling the device (especially Bus Master DMA) at
+  // ExitBootServices().
   //
   EFI_EVENT                         ExitBootEvent;
 } ATA_ATAPI_PASS_THRU_INSTANCE;