media: dvb: represent min/max/step/tolerance freqs in Hz

Right now, satellite frontend drivers specify frequencies in kHz,
while terrestrial/cable ones specify in Hz. That's confusing
for developers.

However, the main problem is that universal frontends capable
of handling both satellite and non-satelite delivery systems
are appearing. We end by needing to hack the drivers in
order to support such hybrid frontends.

So, convert everything to specify frontend frequencies in Hz.

Tested-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
diff --git a/drivers/media/dvb-frontends/rtl2830.c b/drivers/media/dvb-frontends/rtl2830.c
index 7bbfe11..adc9046 100644
--- a/drivers/media/dvb-frontends/rtl2830.c
+++ b/drivers/media/dvb-frontends/rtl2830.c
@@ -159,8 +159,8 @@
 				     struct dvb_frontend_tune_settings *s)
 {
 	s->min_delay_ms = 500;
-	s->step_size = fe->ops.info.frequency_stepsize * 2;
-	s->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1;
+	s->step_size = fe->ops.info.frequency_stepsize_hz * 2;
+	s->max_drift = (fe->ops.info.frequency_stepsize_hz * 2) + 1;
 
 	return 0;
 }