[media] rtl2830: convert driver to kernel I2C model

Convert driver to kernel I2C model. Old DVB proprietary model is
still left there also.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --cc drivers/media/dvb-frontends/Kconfig
Simple merge

diff --cc drivers/media/dvb-frontends/rtl2830.c
Simple merge

diff --cc drivers/media/dvb-frontends/rtl2830.h
Simple merge

diff --cc drivers/media/dvb-frontends/rtl2830_priv.h
Simple merge