autotest: set SIM_SPEEDUP=1 for log download

this may make the test more reliable

Tools/autotest/vehicle_test_suite.py

@@ -4356,6 +4356,7 @@ def TestLogDownloadMAVProxy(self, upload_logs=False):
         filename = "MAVProxy-downloaded-log.BIN"
         mavproxy = self.start_mavproxy()
         self.mavproxy_load_module(mavproxy, 'log')
+        self.set_parameter('SIM_SPEEDUP', 1)
         mavproxy.send("log list\n")
         mavproxy.expect("numLogs")
         self.wait_heartbeat()
@@ -4407,6 +4408,9 @@ def TestLogDownloadMAVProxyNetwork(self, upload_logs=False):
             "NET_P4_IP3": 0,
             })
         self.reboot_sitl()
+
+        self.set_parameter('SIM_SPEEDUP', 1)
+
         endpoints = [('UDPClient', ':16001') ,
                      ('UDPServer', 'udpout:127.0.0.1:16002'),
                      ('TCPClient', 'tcpin:0.0.0.0:16003'),
@@ -4450,6 +4454,9 @@ def TestLogDownloadMAVProxyNetwork(self, upload_logs=False):
             "LOG_DISARMED": 0,
             })
         self.reboot_sitl()
+
+        self.set_parameter('SIM_SPEEDUP', 1)
+
         endpoints = [('UDPMulticast', 'mcast:16005') ,
                      ('UDPBroadcast', ':16006')]
         for name, e in endpoints:
@@ -4487,6 +4494,9 @@ def TestLogDownloadMAVProxyCAN(self, upload_logs=False):
             "CAN_D1_UC_S1_PRO": 2,
             })
         self.reboot_sitl()
+
+        self.set_parameter('SIM_SPEEDUP', 1)
+
         filename = "MAVProxy-downloaded-can-log.BIN"
         # port 15550 is in SITL_Periph_State.h as SERIAL4 udpclient:127.0.0.1:15550
         mavproxy = self.start_mavproxy(master=':15550')