ath5k: don't use volatile, it's not needed

Signed-off-by: Pavel Roskin <proski@gnu.org>

The reg variable is only used by __raw_writel() and __raw_readl(), which
should guarantee memory access in the right order.
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 3188204..bbeef3a 100644
--- a/drivers/net/wireless/ath/ath5k/reset.c
+++ b/drivers/net/wireless/ath/ath5k/reset.c
@@ -375,7 +375,7 @@
 static int ath5k_hw_wisoc_reset(struct ath5k_hw *ah, u32 flags)
 {
 	u32 mask = flags ? flags : ~0U;
-	volatile __iomem u32 *reg;
+	u32 __iomem *reg;
 	u32 regval;
 	u32 val = 0;