drivers/net/wireless/ath9k: fix sparse warnings: Should it be static?

Impact: Make symbols static.

Fix this sparse warnings:
  drivers/net/wireless/ath9k/eeprom.c:1343:5: warning: symbol 'ath9k_hw_4k_get_spur_channel' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:1372:19: warning: symbol 'eep_4k_ops' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2649:5: warning: symbol 'ath9k_hw_def_get_spur_channel' was not declared. Should it be static?
  drivers/net/wireless/ath9k/eeprom.c:2678:19: warning: symbol 'eep_def_ops' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wireless/ath9k/eeprom.c

@@ -1340,7 +1340,7 @@ static u8 ath9k_hw_4k_get_num_ant_config(struct ath_hw *ah,
 	return 1;
 }
 
-u16 ath9k_hw_4k_get_spur_channel(struct ath_hw *ah, u16 i, bool is2GHz)
+static u16 ath9k_hw_4k_get_spur_channel(struct ath_hw *ah, u16 i, bool is2GHz)
 {
 #define EEP_MAP4K_SPURCHAN \
 	(ah->eeprom.map4k.modalHeader.spurChans[i].spurChan)
@@ -1369,7 +1369,7 @@ u16 ath9k_hw_4k_get_spur_channel(struct ath_hw *ah, u16 i, bool is2GHz)
 #undef EEP_MAP4K_SPURCHAN
 }
 
-struct eeprom_ops eep_4k_ops = {
+static struct eeprom_ops eep_4k_ops = {
 	.check_eeprom		= ath9k_hw_4k_check_eeprom,
 	.get_eeprom		= ath9k_hw_4k_get_eeprom,
 	.fill_eeprom		= ath9k_hw_4k_fill_eeprom,
@@ -2646,7 +2646,7 @@ static u16 ath9k_hw_def_get_eeprom_antenna_cfg(struct ath_hw *ah,
 	return pModal->antCtrlCommon & 0xFFFF;
 }
 
-u16 ath9k_hw_def_get_spur_channel(struct ath_hw *ah, u16 i, bool is2GHz)
+static u16 ath9k_hw_def_get_spur_channel(struct ath_hw *ah, u16 i, bool is2GHz)
 {
 #define EEP_DEF_SPURCHAN \
 	(ah->eeprom.def.modalHeader[is2GHz].spurChans[i].spurChan)
@@ -2675,7 +2675,7 @@ u16 ath9k_hw_def_get_spur_channel(struct ath_hw *ah, u16 i, bool is2GHz)
 #undef EEP_DEF_SPURCHAN
 }
 
-struct eeprom_ops eep_def_ops = {
+static struct eeprom_ops eep_def_ops = {
 	.check_eeprom		= ath9k_hw_def_check_eeprom,
 	.get_eeprom		= ath9k_hw_def_get_eeprom,
 	.fill_eeprom		= ath9k_hw_def_fill_eeprom,