ath: Convert ath_print(.., ATH_DBG_FATAL to ath_err

So these errors are always emitted at KERN_ERR level.
Remove ARRAY_SIZE casts, use printf type %zu

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 09f69a9..71339da 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -59,10 +59,9 @@
 
 	if (pdata) {
 		if (off >= (ARRAY_SIZE(pdata->eeprom_data))) {
-			ath_print(common, ATH_DBG_FATAL,
-				  "%s: eeprom read failed, offset %08x "
-				  "is out of range\n",
-				  __func__, off);
+			ath_err(common,
+				"%s: eeprom read failed, offset %08x is out of range\n",
+				__func__, off);
 		}
 
 		*data = pdata->eeprom_data[off];