V4L/DVB (9442): Revert back previous change to 90MHz

Note:
* At High Symbol Rates we do not have enouph machine cycles to handle the
  incoming symbols and hence might run into problems at the very end of the
  specified definition
* Most of the equations have been calculated for a master clock of 99 MHz,
  running at 90MHz, raises lot of issues such as the need to recalculate
  all of them , which is eventually very painful.

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/frontends/stb0899_drv.c b/drivers/media/dvb/frontends/stb0899_drv.c
index 862b086..d213964 100644
--- a/drivers/media/dvb/frontends/stb0899_drv.c
+++ b/drivers/media/dvb/frontends/stb0899_drv.c
@@ -1575,7 +1575,7 @@
 		if (i_params->srate <= 5000000)
 			stb0899_set_mclk(state, 76500000);
 		else
-			stb0899_set_mclk(state, 90000000);
+			stb0899_set_mclk(state, 99000000);
 
 		switch (state->delsys) {
 		case DVBFE_DELSYS_DVBS: