fsl_sata: Move the snoop bit to another place

For P1022 SATA host controller, the data snoop bit of DW3 in PRDT
is moved to bit28.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

drivers/block/fsl_sata.h

@@ -243,8 +243,12 @@ typedef struct prd_entry {
 
 /* ext_c_ddc
 */
-#define PRD_ENTRY_EXT		0x80000000 /* extension flag or called indirect descriptor flag */
-#define PRD_ENTRY_DATA_SNOOP	0x00400000 /* Snoop enable for all data associated with the PRD entry */
+#define PRD_ENTRY_EXT		0x80000000 /* extension flag */
+#ifdef CONFIG_FSL_SATA_V2
+#define PRD_ENTRY_DATA_SNOOP	0x10000000 /* Data snoop enable */
+#else
+#define PRD_ENTRY_DATA_SNOOP	0x00400000 /* Data snoop enable */
+#endif
 #define PRD_ENTRY_LEN_MASK	0x003fffff /* Data word count */
 
 #define PRD_ENTRY_MAX_XFER_SZ	(PRD_ENTRY_LEN_MASK + 1)