fuzz: Don't overload meaning of reset()

This function is for really for the transport layer to trigger a device
reset. Instead name it appropriately for the fuzzing specific use case.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>

fuzz/fuzz_targets/rng.rs

@@ -104,7 +104,7 @@ fuzz_target!(|bytes| {
     .ok();
 
     // Wait for the events to finish and rng device worker thread to return
-    rng.reset();
+    rng.wait_for_epoll_threads();
 });
 
 pub struct NoopVirtioInterrupt {}