Add additional get_freq if freq > 100MHz to update cache

This covers rigs that round VHF/UHF freqs to different intervals
https://github.com/Hamlib/Hamlib/issues/334

src/rig.c

@@ -1362,6 +1362,7 @@ int HAMLIB_API rig_set_freq(RIG *rig, vfo_t vfo, freq_t freq)
         // we'll try this all the time and if it works out OK eliminate the #else
 
         if ((unsigned long long)freq % 100 != 0 // only need to do if < 100Hz interval
+                || freq > 100e6  // or if we are in the VHF and up range
 #if 0
                 // do we need to only do this when cache is turned on? 2020-07-02 W9MDB
                 && rig->state.cache.timeout_ms > 0