drivers/net/wireless/b43: fix sparse warnings: make symbols static

Fix this sparse warnings:

  drivers/net/wireless/b43/phy_a.c:80:6: warning: symbol 'b43_radio_set_tx_iq' was not declared. Should it be static?
  drivers/net/wireless/b43/phy_a.c:150:6: warning: symbol 'b43_radio_init2060' was not declared. Should it be static?
  drivers/net/wireless/b43/phy_g.c:57:10: warning: symbol 'b43_radio_channel_codes_bg' was not declared. Should it be static?
  drivers/net/wireless/b43/phy_g.c:218:6: warning: symbol 'b43_set_txpower_g' was not declared. Should it be static?
  drivers/net/wireless/b43/phy_g.c:386:6: warning: symbol 'b43_nrssi_hw_write' was not declared. Should it be static?
  drivers/net/wireless/b43/phy_g.c:393:5: warning: symbol 'b43_nrssi_hw_read' was not declared. Should it be static?
  drivers/net/wireless/b43/phy_g.c:404:6: warning: symbol 'b43_nrssi_hw_update' was not declared. Should it be static?
  drivers/net/wireless/b43/phy_g.c:418:6: warning: symbol 'b43_nrssi_mem_update' was not declared. Should it be static?
  drivers/net/wireless/b43/phy_g.c:592:6: warning: symbol 'b43_calc_nrssi_slope' was not declared. Should it be static?
  drivers/net/wireless/b43/phy_g.c:1357:5: warning: symbol 'b43_radio_init2050' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/b43/phy_a.c b/drivers/net/wireless/b43/phy_a.c
index 0f1a84c..7fe9d17 100644
--- a/drivers/net/wireless/b43/phy_a.c
+++ b/drivers/net/wireless/b43/phy_a.c
@@ -77,7 +77,7 @@
 }
 #endif
 
-void b43_radio_set_tx_iq(struct b43_wldev *dev)
+static void b43_radio_set_tx_iq(struct b43_wldev *dev)
 {
 	static const u8 data_high[5] = { 0x00, 0x40, 0x80, 0x90, 0xD0 };
 	static const u8 data_low[5] = { 0x00, 0x01, 0x05, 0x06, 0x0A };
@@ -147,7 +147,7 @@
 //FIXME	b43_phy_xmitpower(dev);
 }
 
-void b43_radio_init2060(struct b43_wldev *dev)
+static void b43_radio_init2060(struct b43_wldev *dev)
 {
 	b43_radio_write16(dev, 0x0004, 0x00C0);
 	b43_radio_write16(dev, 0x0005, 0x0008);