usb: phy: ab8500-usb: fix spelling mistake "regester" -> "register"

Trivial fix to spelling mistakes in dev_err messages.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

drivers/usb/phy/phy-ab8500-usb.c

@@ -1248,7 +1248,7 @@ static void ab8500_usb_set_ab8500_tuning_values(struct ab8500_usb *ab)
 	err = abx500_set_register_interruptible(ab->dev,
 			AB8500_DEBUG, AB8500_USB_PHY_TUNE3, 0x78);
 	if (err < 0)
-		dev_err(ab->dev, "Failed to set PHY_TUNE3 regester err=%d\n",
+		dev_err(ab->dev, "Failed to set PHY_TUNE3 register err=%d\n",
 				err);
 
 	/* Switch to normal mode/disable Bank 0x12 access */
@@ -1290,7 +1290,7 @@ static void ab8500_usb_set_ab8505_tuning_values(struct ab8500_usb *ab)
 			0xFC, 0x80);
 
 	if (err < 0)
-		dev_err(ab->dev, "Failed to set PHY_TUNE3 regester err=%d\n",
+		dev_err(ab->dev, "Failed to set PHY_TUNE3 register err=%d\n",
 				err);
 
 	/* Switch to normal mode/disable Bank 0x12 access */
@@ -1321,7 +1321,7 @@ static void ab8500_usb_set_ab8540_tuning_values(struct ab8500_usb *ab)
 	err = abx500_set_register_interruptible(ab->dev,
 			AB8540_DEBUG, AB8500_USB_PHY_TUNE3, 0x90);
 	if (err < 0)
-		dev_err(ab->dev, "Failed to set PHY_TUNE3 regester ret=%d\n",
+		dev_err(ab->dev, "Failed to set PHY_TUNE3 register ret=%d\n",
 				err);
 }
 
@@ -1351,7 +1351,7 @@ static void ab8500_usb_set_ab9540_tuning_values(struct ab8500_usb *ab)
 	err = abx500_set_register_interruptible(ab->dev,
 			AB8500_DEBUG, AB8500_USB_PHY_TUNE3, 0x80);
 	if (err < 0)
-		dev_err(ab->dev, "Failed to set PHY_TUNE3 regester err=%d\n",
+		dev_err(ab->dev, "Failed to set PHY_TUNE3 register err=%d\n",
 				err);
 
 	/* Switch to normal mode/disable Bank 0x12 access */