ath9k: fix some debugfs output

The right shift operation has higher precedence than the mask so we
left shift by "(i * 3)" and then immediately right shift by "(i * 3)"
then we mask.  It should be left shift, mask, and then right shift.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/debug.c

@@ -455,7 +455,7 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 			 "%2d          %2x      %1x     %2x           %2x\n",
 			 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
 			 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
-			 val[2] & (0x7 << (i * 3)) >> (i * 3),
+			 (val[2] & (0x7 << (i * 3))) >> (i * 3),
 			 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
 	}