V4L/DVB (3437): Fix typo in enum name and use enum in struct dmxdev_filter

Rename 'enum dmxdevype' to 'enum dmxdev_type' and use this enum instead
of int for the member 'type' of struct dmxdev_filter.
Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/dvb-core/dmxdev.h

@@ -37,7 +37,7 @@
 #include "dvbdev.h"
 #include "demux.h"
 
-enum dmxdevype {
+enum dmxdev_type {
 	DMXDEV_TYPE_NONE,
 	DMXDEV_TYPE_SEC,
 	DMXDEV_TYPE_PES,
@@ -76,7 +76,7 @@ struct dmxdev_filter {
 		struct dmx_pes_filter_params pes;
 	} params;
 
-	int type;
+	enum dmxdev_type type;
 	enum dmxdev_state state;
 	struct dmxdev *dev;
 	struct dmxdev_buffer buffer;