Consume reset request on encoding start

If a reset request is pending when a new encoding starts, then it is
implicitly fulfilled.

server/src/main/java/com/genymobile/scrcpy/video/SurfaceEncoder.java

@@ -72,6 +72,7 @@ private void streamCapture() throws IOException, ConfigurationException {
             boolean headerWritten = false;
 
             do {
+                capture.consumeReset(); // If a capture reset was requested, it is implicitly fulfilled
                 capture.prepare();
                 Size size = capture.getSize();
                 if (!headerWritten) {