[libata] drivers: remove 'void __iomem *' casts from pre-iomap days

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
index dc3bbce..8efc531 100644
--- a/drivers/ata/sata_inic162x.c
+++ b/drivers/ata/sata_inic162x.c
@@ -192,7 +192,7 @@
 
 static u32 inic_scr_read(struct ata_port *ap, unsigned sc_reg)
 {
-	void __iomem *scr_addr = (void __iomem *)ap->ioaddr.scr_addr;
+	void __iomem *scr_addr = ap->ioaddr.scr_addr;
 	void __iomem *addr;
 	u32 val;
 
@@ -210,7 +210,7 @@
 
 static void inic_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val)
 {
-	void __iomem *scr_addr = (void __iomem *)ap->ioaddr.scr_addr;
+	void __iomem *scr_addr = ap->ioaddr.scr_addr;
 	void __iomem *addr;
 
 	if (unlikely(sc_reg >= ARRAY_SIZE(scr_map)))