diag: Add On-Device logging support for Fusion3

Diag traffic can be written to an SD card.  For Fusion3, add
support for logging diag traffic from the MDM over the HSIC
to the SD card.

Change-Id: I1f532557452ba8ec1c55e6b17114bf4c000d5769
Signed-off-by: Dixon Peterson <dixonp@codeaurora.org>
diff --git a/drivers/char/diag/diagfwd_hsic.h b/drivers/char/diag/diagfwd_hsic.h
index 3cfb260..8785d9f 100644
--- a/drivers/char/diag/diagfwd_hsic.h
+++ b/drivers/char/diag/diagfwd_hsic.h
@@ -17,6 +17,10 @@
 #define N_MDM_WRITE	1 /* Upgrade to 2 with ping pong buffer */
 #define N_MDM_READ	1
 
+int diagfwd_connect_hsic(int);
+int diagfwd_disconnect_hsic(int);
+int diagfwd_write_complete_hsic(void);
+int diagfwd_cancel_hsic(void);
 void diagfwd_hsic_init(void);
 void diagfwd_hsic_exit(void);