misc: mic: Fixes for randconfig build errors and warnings.

This patch fixes the build errors and warnings reported at
https://lkml.org/lkml/2013/10/29/421.

Co-author: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Reviewed-by: Sudeep Dutt <sudeep.dutt@intel.com>
Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mic/host/mic_boot.c

@@ -20,6 +20,7 @@
  */
 #include <linux/delay.h>
 #include <linux/firmware.h>
+#include <linux/pci.h>
 
 #include <linux/mic_common.h>
 #include "../common/mic_dev.h"

drivers/misc/mic/host/mic_fops.c

@@ -19,6 +19,7 @@
  *
  */
 #include <linux/poll.h>
+#include <linux/pci.h>
 
 #include <linux/mic_common.h>
 #include "../common/mic_dev.h"

drivers/misc/mic/host/mic_virtio.c

@@ -517,10 +517,10 @@ int mic_virtio_add_device(struct mic_vdev *mvdev,
 			void __user *argp)
 {
 	struct mic_device *mdev = mvdev->mdev;
-	struct mic_device_desc *dd;
+	struct mic_device_desc *dd = NULL;
 	struct mic_vqconfig *vqconfig;
 	int vr_size, i, j, ret;
-	u8 type;
+	u8 type = 0;
 	s8 db;
 	char irqname[10];
 	struct mic_bootparam *bootparam = mdev->dp;