[media] af9035: add support for the tda18218 tuner

Add basic support for the tda18218 tuner and the AVerMedia A835 devices.

Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/frontends/af9033.h b/drivers/media/dvb/frontends/af9033.h
index dcf7e29..9e302c3 100644
--- a/drivers/media/dvb/frontends/af9033.h
+++ b/drivers/media/dvb/frontends/af9033.h
@@ -41,6 +41,7 @@
 #define AF9033_TUNER_TUA9001     0x27 /* Infineon TUA 9001 */
 #define AF9033_TUNER_FC0011      0x28 /* Fitipower FC0011 */
 #define AF9033_TUNER_MXL5007T    0xa0 /* MaxLinear MxL5007T */
+#define AF9033_TUNER_TDA18218    0xa1 /* NXP TDA 18218HN */
 	u8 tuner;
 
 	/*