rtl8192c: fix compilation errors

On my G5 this fails to compile with

drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:701: error: __ksymtab__rtl92c_phy_txpwr_idx_to_dbm causes a section type conflict
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:701: error: __ksymtab__rtl92c_phy_txpwr_idx_to_dbm causes a section type conflict
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:677: error: __ksymtab__rtl92c_phy_dbm_to_txpwr_Idx causes a section type conflict
drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c:677: error: __ksymtab__rtl92c_phy_dbm_to_txpwr_Idx causes a section type conflict

since you can't export static functions.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c

@@ -644,7 +644,7 @@ void rtl92c_phy_set_beacon_hw_reg(struct ieee80211_hw *hw, u16 beaconinterval)
 }
 EXPORT_SYMBOL(rtl92c_phy_set_beacon_hw_reg);
 
-static u8 _rtl92c_phy_dbm_to_txpwr_Idx(struct ieee80211_hw *hw,
+u8 _rtl92c_phy_dbm_to_txpwr_Idx(struct ieee80211_hw *hw,
 				enum wireless_mode wirelessmode,
 				long power_indbm)
 {
@@ -676,7 +676,7 @@ static u8 _rtl92c_phy_dbm_to_txpwr_Idx(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL(_rtl92c_phy_dbm_to_txpwr_Idx);
 
-static long _rtl92c_phy_txpwr_idx_to_dbm(struct ieee80211_hw *hw,
+long _rtl92c_phy_txpwr_idx_to_dbm(struct ieee80211_hw *hw,
 				  enum wireless_mode wirelessmode,
 				  u8 txpwridx)
 {

drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h

@@ -228,10 +228,10 @@ void rtl92ce_phy_set_rf_on(struct ieee80211_hw *hw);
 void rtl92c_phy_set_io(struct ieee80211_hw *hw);
 void rtl92c_bb_block_on(struct ieee80211_hw *hw);
 u32 _rtl92c_phy_calculate_bit_shift(u32 bitmask);
-static long _rtl92c_phy_txpwr_idx_to_dbm(struct ieee80211_hw *hw,
+long _rtl92c_phy_txpwr_idx_to_dbm(struct ieee80211_hw *hw,
 				  enum wireless_mode wirelessmode,
 				  u8 txpwridx);
-static u8 _rtl92c_phy_dbm_to_txpwr_Idx(struct ieee80211_hw *hw,
+u8 _rtl92c_phy_dbm_to_txpwr_Idx(struct ieee80211_hw *hw,
 				enum wireless_mode wirelessmode,
 				long power_indbm);
 void _rtl92c_phy_init_bb_rf_register_definition(struct ieee80211_hw *hw);