staging: rtl8188eu: make efuse_ReadEFuse static

The function is used only inside rtw_efuse.c.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20210620175301.14988-11-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_efuse.c

@@ -281,7 +281,7 @@ static s32 iol_read_efuse(struct adapter *padapter, u8 txpktbuf_bndy, u16 offset
 	return status;
 }
 
-void efuse_ReadEFuse(struct adapter *Adapter, u16 _offset, u16 _size_byte, u8 *pbuf)
+static void efuse_ReadEFuse(struct adapter *Adapter, u16 _offset, u16 _size_byte, u8 *pbuf)
 {
 	if (rtw_iol_applied(Adapter)) {
 		rtw_hal_power_on(Adapter);

drivers/staging/rtl8188eu/include/rtw_efuse.h

@@ -57,7 +57,6 @@ u8 Efuse_CalculateWordCnts(u8 word_en);
 u8 efuse_OneByteRead(struct adapter *adapter, u16 addr, u8 *data);
 u8 efuse_OneByteWrite(struct adapter *adapter, u16 addr, u8 data);
 
-void efuse_ReadEFuse(struct adapter *Adapter, u16 _offset, u16 _size_byte, u8 *pbuf);
 int Efuse_PgPacketRead(struct adapter *adapt, u8 offset, u8 *data);
 bool Efuse_PgPacketWrite(struct adapter *adapter, u8 offset, u8 word, u8 *data);
 void efuse_WordEnableDataRead(u8 word_en, u8 *sourdata, u8 *targetdata);