diag: Add SMD support

The patch adds SMD support which is required
for diag functionality for peripherals which
still supports SMD.

CRs-Fixed: 2162765
Change-Id: Ieff13b7bb1fb3a91ba65bab2f2382aefb715bbb1
Signed-off-by: Mohit Aggarwal <maggarwa@codeaurora.org>
Signed-off-by: Hardik Arya <harya@codeaurora.org>
diff --git a/drivers/char/diag/diagchar.h b/drivers/char/diag/diagchar.h
index 9de40b0..2e3c1dc 100644
--- a/drivers/char/diag/diagchar.h
+++ b/drivers/char/diag/diagchar.h
@@ -22,6 +22,7 @@
 #include <linux/workqueue.h>
 #include <linux/sched.h>
 #include <linux/device.h>
+#include <soc/qcom/smd.h>
 #include <linux/atomic.h>
 #include "diagfwd_bridge.h"