fix RFNM source on MacOS

Author: AlexandreRouma

source_modules/rfnm_source/src/main.cpp

@@ -168,7 +168,7 @@ class RFNMSourceModule : public ModuleManager::Instance {
                 if (path == RFNM_PATH_NULL) { continue; }
 
                 // Get the path
-                PathConfig pc = { path, offset + i, (1 << (offset + i + 8))};
+                PathConfig pc = { path, offset + i, (uint16_t)(1 << (offset + i + 8))};
 
                 // If it's not in the list, add it
                 if (!paths.valueExists(pc)) {