can/sja1000: add driver for EMS PCMCIA card

This patch adds the driver for the SJA1000 based PCMCIA card 'CPC-Card' from
EMS Dr. Thomas Wuensche (http://www.ems-wuensche.de).

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Markus Plessing <plessing@ems-wuensche.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/can/sja1000/Kconfig b/drivers/net/can/sja1000/Kconfig
index 72b637d..fe9e64d 100644
--- a/drivers/net/can/sja1000/Kconfig
+++ b/drivers/net/can/sja1000/Kconfig
@@ -29,6 +29,13 @@
 	  OpenFirmware bindings, e.g. if you have a PowerPC based system
 	  you may want to enable this option.
 
+config CAN_EMS_PCMCIA
+	tristate "EMS CPC-CARD Card"
+	depends on PCMCIA
+	---help---
+	  This driver is for the one or two channel CPC-CARD cards from
+	  EMS Dr. Thomas Wuensche (http://www.ems-wuensche.de).
+
 config CAN_EMS_PCI
 	tristate "EMS CPC-PCI, CPC-PCIe and CPC-104P Card"
 	depends on PCI