motion: disable jitter correction on server

Disabled deadbanding to make gyro more accurate. Steam, JSM etc already apply jitter correction so there's no need to do it twice.

(cherry picked from commit cddf07a)

server/src/ctrl.cpp

@@ -40,6 +40,7 @@ flatbuffers::FlatBufferBuilder get_ctrl_as_netprotocol() {
 
   sceMotionSetGyroBiasCorrection(1);
   sceMotionSetTiltCorrection(1);
+  sceMotionSetDeadband(0);
 
   flatbuffers::FlatBufferBuilder builder(512);