cxgb3 - Add T3C rev

add driver recognition for T3C rev board.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 7e9e43d..d3f276c 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -438,6 +438,7 @@
 	T3_REV_A  = 0,
 	T3_REV_B  = 2,
 	T3_REV_B2 = 3,
+	T3_REV_C  = 4,
 };
 
 struct trace_params {