ata: ahci_ceva: Fix id array access in ceva_ahci_read_id()

ATA IDENTIFY command returns an array of le16 words. Accessing it as a
u16 array triggers the following sparse warning:

drivers/ata/ahci_ceva.c:107:33: warning: invalid assignment: &=
drivers/ata/ahci_ceva.c:107:33:    left side has type unsigned short
drivers/ata/ahci_ceva.c:107:33:    right side has type restricted __le16

Use a local variable to explicitly cast the id array to __le16 to avoid
this warning.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

drivers/ata/ahci_ceva.c

@@ -94,6 +94,7 @@ struct ceva_ahci_priv {
 static unsigned int ceva_ahci_read_id(struct ata_device *dev,
 					struct ata_taskfile *tf, u16 *id)
 {
+	__le16 *__id = (__le16 *)id;
 	u32 err_mask;
 
 	err_mask = ata_do_dev_read_id(dev, tf, id);
@@ -103,7 +104,7 @@ static unsigned int ceva_ahci_read_id(struct ata_device *dev,
 	 * Since CEVA controller does not support device sleep feature, we
 	 * need to clear DEVSLP (bit 8) in word78 of the IDENTIFY DEVICE data.
 	 */
-	id[ATA_ID_FEATURE_SUPP] &= cpu_to_le16(~(1 << 8));
+	__id[ATA_ID_FEATURE_SUPP] &= cpu_to_le16(~(1 << 8));
 
 	return 0;
 }