pcmcia: pcmcia_config_loop() default CIS entry handling

Many drivers use the default CIS entry within their pcmcia_config_loop()
callback function. Therefore, factor the default CIS entry handling out.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

drivers/isdn/hardware/avm/avm_cs.c

@@ -156,6 +156,7 @@ static void avmcs_detach(struct pcmcia_device *link)
 
 static int avmcs_configcheck(struct pcmcia_device *p_dev,
 			     cistpl_cftable_entry_t *cf,
+			     cistpl_cftable_entry_t *dflt,
 			     void *priv_data)
 {
 	if (cf->io.nwin <= 0)