staging: rtl8723bs: make 'myid' function to follow kernel coding rules

Checkpatch.pl produced errors regarding inline keyword placement and
parenthesis around returned value in 'myid'.
Place inline after static keyword and remove mentioned parenthesis.
Signed-off-by: Maciek Fijalkowski <macfij7@wp.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/include/drv_types.h

@@ -692,9 +692,9 @@ int rtw_suspend_wow(struct adapter *padapter);
 int rtw_resume_process_wow(struct adapter *padapter);
 #endif
 
-__inline static u8 *myid(struct eeprom_priv *peepriv)
+static inline u8 *myid(struct eeprom_priv *peepriv)
 {
-	return (peepriv->mac_addr);
+	return peepriv->mac_addr;
 }
 
 /*  HCI Related header file */