fix: Allow compile without multimodule support (#3750)

radio/src/telemetry/telemetry_sensors.cpp

@@ -45,6 +45,9 @@
   #include "hitec.h"
   #include "hott.h"
   #include "multi.h"
+#endif
+
+#if  defined(MULTIMODULE) || defined(PPM)
   #include "mlink.h"
 #endif
 
@@ -566,7 +569,7 @@ int setTelemetryValue(TelemetryProtocol protocol, uint16_t id, uint8_t subId,
         break;
 #endif
 
-#if defined(MULTIMODULE) or defined(PPM)
+#if defined(MULTIMODULE) || defined(PPM)
       case PROTOCOL_TELEMETRY_MLINK:
         mlinkSetDefault(index, id, subId, instance);
         break;