s390/zcrypt: Add support for CEX4 crypto card

New zcrypt module supports IBM CryptoExpress 4 cards.

Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index e49bcf4..e9b963e 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -116,6 +116,7 @@
 #define AP_DEVICE_TYPE_CEX2C	7
 #define AP_DEVICE_TYPE_CEX3A	8
 #define AP_DEVICE_TYPE_CEX3C	9
+#define AP_DEVICE_TYPE_CEX4	10
 
 /*
  * Known function facilities