dm: sata: dw_sata: Rename the dwc_ahsata private header

Rename dwc_ahsata.h to indicate that it is a private header file. We plan
to create another header with some public functions.

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/ata/dwc_ahsata.c

@@ -17,7 +17,7 @@
 #include <linux/bitops.h>
 #include <linux/ctype.h>
 #include <linux/errno.h>
-#include "dwc_ahsata.h"
+#include "dwc_ahsata_priv.h"
 
 struct sata_port_regs {
 	u32 clb;

drivers/ata/dwc_ahsata_priv.h

@@ -5,8 +5,8 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#ifndef __FSL_SATA_H__
-#define __FSL_SATA_H__
+#ifndef __DWC_AHSATA_PRIV_H__
+#define __DWC_AHSATA_PRIV_H__
 
 #define DWC_AHSATA_MAX_CMD_SLOTS	32
 
@@ -317,4 +317,4 @@
 #define READ_CMD	0
 #define WRITE_CMD	1
 
-#endif /* __FSL_SATA_H__ */
+#endif /* __DWC_AHSATA_H__ */