According with Manu Abraham, stb0899 seek algorithm is broken
for symbol rates bellow to 5Mbauds. So, revert those patches:
55b3318 [media] stb0899: allow minimum symbol rate of 
2000000
2eeed77 [media] stb0899: allow minimum symbol rate of 
1000000
Requested-by: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
                .frequency_max          = 2150000,
                .frequency_stepsize     = 0,
                .frequency_tolerance    = 0,
-               .symbol_rate_min        =  2000000,
+               .symbol_rate_min        =  5000000,
                .symbol_rate_max        = 45000000,
 
                .caps                   = FE_CAN_INVERSION_AUTO |