Revert "scsi: megaraid_sas: Replace undefined MFI_BIG_ENDIAN macro with...

Revert "scsi: megaraid_sas: Replace undefined MFI_BIG_ENDIAN macro with __BIG_ENDIAN_BITFIELD macro"

This reverts commit b9d5e3e7.

After commit a7faf81d ("scsi: megaraid_sas: Set no_write_same only
for Virtual Disk"), write_same is support default for some devices.
But we found write zero IO is very slow. So, revert it.
Signed-off-by: NYufen Yu <yuyufen@huawei.com>
Reviewed-by: NJason Yan <yanaijie@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/scsi/megaraid/megaraid_sas.h

@@ -511,7 +511,7 @@ union MR_PROGRESS {
  */
 struct MR_PD_PROGRESS {
 	struct {
-#ifndef __BIG_ENDIAN_BITFIELD
+#ifndef MFI_BIG_ENDIAN
 		u32     rbld:1;
 		u32     patrol:1;
 		u32     clear:1;
@@ -537,7 +537,7 @@ struct MR_PD_PROGRESS {
 	};
 
 	struct {
-#ifndef __BIG_ENDIAN_BITFIELD
+#ifndef MFI_BIG_ENDIAN
 		u32     rbld:1;
 		u32     patrol:1;
 		u32     clear:1;

drivers/scsi/megaraid/megaraid_sas_fusion.h

@@ -774,7 +774,7 @@ struct MR_SPAN_BLOCK_INFO {
 struct MR_CPU_AFFINITY_MASK {
 	union {
 		struct {
-#ifndef __BIG_ENDIAN_BITFIELD
+#ifndef MFI_BIG_ENDIAN
 		u8 hw_path:1;
 		u8 cpu0:1;
 		u8 cpu1:1;
@@ -866,7 +866,7 @@ struct MR_LD_RAID {
 	__le16     seqNum;
 
 struct {
-#ifndef __BIG_ENDIAN_BITFIELD
+#ifndef MFI_BIG_ENDIAN
 	u32 ldSyncRequired:1;
 	u32 regTypeReqOnReadIsValid:1;
 	u32 isEPD:1;
@@ -889,7 +889,7 @@ struct {
 	/* 0x30 - 0x33, Logical block size for the LD */
 	u32 logical_block_length;
 	struct {
-#ifndef __BIG_ENDIAN_BITFIELD
+#ifndef MFI_BIG_ENDIAN
 	/* 0x34, P_I_EXPONENT from READ CAPACITY 16 */
 	u32 ld_pi_exp:4;
 	/* 0x34, LOGICAL BLOCKS PER PHYSICAL