V4L/DVB (8971): initial driver for af9013 demodulator

- initial driver for the Afatech AF9013 demodulator

Signed-off-by: Antti Palosaari <crope@iki.fi>
[mchehab.redhat.com: having a global var called 'debug' is not a good idea. rename it to af9013_debug]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig
index e2444f2..097d9f0 100644
--- a/drivers/media/dvb/frontends/Kconfig
+++ b/drivers/media/dvb/frontends/Kconfig
@@ -398,4 +398,10 @@
 	tristate "Dummy frontend driver"
 	default n
 
+config DVB_AF9013
+	tristate "Afatech AF9013 demodulator"
+	depends on DVB_CORE && I2C
+	default m if DVB_FE_CUSTOMISE
+	help
+	  Say Y when you want to support this frontend.
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