atune: reset param on start

This prevents a race condition where autotune cannot start because the param was already set to 1

src/modules/fw_autotune_attitude_control/fw_autotune_attitude_control.cpp

@@ -75,6 +75,7 @@ bool FwAutotuneAttitudeControl::init()
 
 void FwAutotuneAttitudeControl::reset()
 {
+	_param_fw_at_start.reset();
 }
 
 void FwAutotuneAttitudeControl::Run()

src/modules/mc_autotune_attitude_control/mc_autotune_attitude_control.cpp

@@ -68,6 +68,7 @@ bool McAutotuneAttitudeControl::init()
 
 void McAutotuneAttitudeControl::reset()
 {
+	_param_mc_at_start.reset();
 }
 
 void McAutotuneAttitudeControl::Run()