ath5k:Remove __raw_read and __raw_write

By swithing from our __raw_read and __raw_write functions to ioread32 and iowrite32,
benchmarks on my desk with iperf went from 11MBps to 18.1MBps using the AHB bus
on an EnGenius ECB3500 running OpenWRT.

Signed-off-by: Jonathan Bither <jonbither@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
index 250db40..200f165 100644
--- a/drivers/net/wireless/ath/ath5k/reset.c
+++ b/drivers/net/wireless/ath/ath5k/reset.c
@@ -473,14 +473,14 @@
 	}
 
 	/* Put BB/MAC into reset */
-	regval = __raw_readl(reg);
-	__raw_writel(regval | val, reg);
-	regval = __raw_readl(reg);
+	regval = ioread32(reg);
+	iowrite32(regval | val, reg);
+	regval = ioread32(reg);
 	usleep_range(100, 150);
 
 	/* Bring BB/MAC out of reset */
-	__raw_writel(regval & ~val, reg);
-	regval = __raw_readl(reg);
+	iowrite32(regval & ~val, reg);
+	regval = ioread32(reg);
 
 	/*
 	 * Reset configuration register (for hw byte-swap). Note that this