GenWQE: Fix compile problems for Alpha

The header which contained the declaration for kcalloc() was not
inlcuded.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/genwqe/card_base.h

@@ -36,6 +36,7 @@
 #include <linux/io.h>
 #include <linux/version.h>
 #include <linux/debugfs.h>
+#include <linux/slab.h>
 
 #include <linux/genwqe/genwqe_card.h>
 #include "genwqe_driver.h"

drivers/misc/genwqe/card_ddcb.c

@@ -38,6 +38,7 @@
 #include <linux/interrupt.h>
 #include <linux/crc-itu-t.h>
 
+#include "card_base.h"
 #include "card_ddcb.h"
 
 /*