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>

drivers/media/dvb-frontends/dib3000mc.c

@@ -944,9 +944,9 @@ static const struct dvb_frontend_ops dib3000mc_ops = {
 	.delsys = { SYS_DVBT },
 	.info = {
 		.name = "DiBcom 3000MC/P",
-		.frequency_min      = 44250000,
-		.frequency_max      = 867250000,
-		.frequency_stepsize = 62500,
+		.frequency_min_hz      =  44250 * kHz,
+		.frequency_max_hz      = 867250 * kHz,
+		.frequency_stepsize_hz = 62500,
 		.caps = FE_CAN_INVERSION_AUTO |
 			FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
 			FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |