staging: rtl8712: Replace r8712_free_cmd_priv()

Remove function r8712_free_cmd_priv as all it does is call
_free_cmd_priv.
Change type of new r8712_free_cmd_priv from static to non-static to
match definition of original r8712_free_cmd_priv.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8712/rtl871x_cmd.c

@@ -92,7 +92,7 @@ static void _free_evt_priv(struct evt_priv *pevtpriv)
 	kfree(pevtpriv->evt_allocated_buf);
 }
 
-static void _free_cmd_priv(struct cmd_priv *pcmdpriv)
+void r8712_free_cmd_priv(struct cmd_priv *pcmdpriv)
 {
 	if (pcmdpriv) {
 		kfree(pcmdpriv->cmd_allocated_buf);
@@ -140,11 +140,6 @@ void r8712_free_evt_priv(struct evt_priv *pevtpriv)
 	_free_evt_priv(pevtpriv);
 }
 
-void r8712_free_cmd_priv(struct cmd_priv *pcmdpriv)
-{
-	_free_cmd_priv(pcmdpriv);
-}
-
 void r8712_enqueue_cmd(struct cmd_priv *pcmdpriv, struct cmd_obj *obj)
 {
 	if (pcmdpriv->padapter->eeprompriv.bautoload_fail_flag)