[media] mxl301rf: add driver for MaxLinear MxL301RF OFDM tuner

This patch adds driver for mxl301rf OFDM tuner chips.
It is used as an ISDB-T tuner in earthsoft pt3 cards.

Note that this driver does not initilize the chip,
because the initilization sequence / register setting is not disclosed.
Thus, the driver assumes that the chips are initilized externally
by its parent board driver before tuner_ops->init() are called,
like in PT3 driver where the bridge chip contains the init sequence
in its private memory and provides a command to trigger the sequence.

Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/tuners/Makefile b/drivers/media/tuners/Makefile
index 7eede5c..5c41a33 100644
--- a/drivers/media/tuners/Makefile
+++ b/drivers/media/tuners/Makefile
@@ -39,6 +39,7 @@
 obj-$(CONFIG_MEDIA_TUNER_FC0013) += fc0013.o
 obj-$(CONFIG_MEDIA_TUNER_IT913X) += it913x.o
 obj-$(CONFIG_MEDIA_TUNER_R820T) += r820t.o
+obj-$(CONFIG_MEDIA_TUNER_MXL301RF) += mxl301rf.o
 
 ccflags-y += -I$(srctree)/drivers/media/dvb-core
 ccflags-y += -I$(srctree)/drivers/media/dvb-frontends