[media] af9035: enhancement for unknown tuner ID handling

* do not attach frontend when tuner is not supported
* fix unkown tuner ID log write format
* add prefix for dvb-usb log writings

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/dvb-usb/af9035.h b/drivers/media/dvb/dvb-usb/af9035.h
index b9af9c8..0df24cd 100644
--- a/drivers/media/dvb/dvb-usb/af9035.h
+++ b/drivers/media/dvb/dvb-usb/af9035.h
@@ -22,6 +22,9 @@
 #ifndef AF9035_H
 #define AF9035_H
 
+/* prefix for dvb-usb log writings */
+#define DVB_USB_LOG_PREFIX "af9035"
+
 #include "dvb-usb.h"
 
 struct reg_val {
@@ -46,6 +49,7 @@
 
 struct config {
 	bool dual_mode;
+	bool hw_not_supported;
 };
 
 struct fw_segment {