V4L/DVB (4203): Explicitly set the enum values.

It's better to use explicit enums. It reduces the chance of someone
inserting new enums in the middle which would break things.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/include/media/cx2341x.h b/include/media/cx2341x.h
index fb170d4..51fb06b 100644
--- a/include/media/cx2341x.h
+++ b/include/media/cx2341x.h
@@ -20,9 +20,9 @@
 #define CX2341X_H
 
 enum cx2341x_port {
-	CX2341X_PORT_MEMORY,
-	CX2341X_PORT_STREAMING,
-	CX2341X_PORT_SERIAL
+	CX2341X_PORT_MEMORY    = 0,
+	CX2341X_PORT_STREAMING = 1,
+	CX2341X_PORT_SERIAL    = 2
 };
 
 struct cx2341x_mpeg_params {