ath9k: Merge ath_hal and ath_hal_5416 structures

Finally, merge these structures and have a single
HW specific data structure.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/ahb.c b/drivers/net/wireless/ath9k/ahb.c
index d254b35..391c9fd 100644
--- a/drivers/net/wireless/ath9k/ahb.c
+++ b/drivers/net/wireless/ath9k/ahb.c
@@ -32,7 +32,7 @@
 	iounmap(sc->mem);
 }
 
-static bool ath_ahb_eeprom_read(struct ath_hal *ah, u32 off, u16 *data)
+static bool ath_ahb_eeprom_read(struct ath_hw *ah, u32 off, u16 *data)
 {
 	struct ath_softc *sc = ah->ah_sc;
 	struct platform_device *pdev = to_platform_device(sc->dev);
@@ -65,7 +65,7 @@
 	struct resource *res;
 	int irq;
 	int ret = 0;
-	struct ath_hal *ah;
+	struct ath_hw *ah;
 
 	if (!pdev->dev.platform_data) {
 		dev_err(&pdev->dev, "no platform data specified\n");