Audio fixes (#3818)

* * Switches audio filenames were wrong [Horus]
* sdAvailableLogicalSwitchAudioFiles was too small (we now have 64 LSW), fixed with BitFiled class

* Enabled Travis Gtests on Horus

* SD card version mismatch trace

* Re #3815: Audio debug timers added

radio/src/debug.cpp

@@ -224,6 +224,11 @@ const char * debugTimerNames[DEBUG_TIMERS_COUNT] = {
   ,"ADC read   "   // debugTimerAdcRead,
   ,"mix-pulses "   // debugTimerMixerCalcToUsage
   ,"mix-int.   "   // debugTimerMixerIterval
+  ,"Audio int. "   // debugTimerAudioIterval
+  ,"Audio dur. "   // debugTimerAudioDuration
+  ," A. consume"   // debugTimerAudioConsume,
+  ," A push    "   // debugTimerAudioPush,
+
 };
 
 #endif