media: si2168: add frequency data to frontend info

Minimum, maximum, and stepsize taken from Silicon Labs reference.
Signed-off-by: NBrad Love <brad@nextdimension.cc>
Signed-off-by: NMauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/dvb-frontends/si2168.c

@@ -683,6 +683,9 @@ static const struct dvb_frontend_ops si2168_ops = {
 	.delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A},
 	.info = {
 		.name = "Silicon Labs Si2168",
+		.frequency_min_hz      =  48 * MHz,
+		.frequency_max_hz      = 870 * MHz,
+		.frequency_stepsize_hz = 62500,
 		.symbol_rate_min       = 1000000,
 		.symbol_rate_max       = 7200000,
 		.caps =	FE_CAN_FEC_1_2 |