Revert "APM1: Delay serial3 init to not brick Xbee radios"

This reverts commit 25d14a9d6a4a1ea60eb78485296298c98c1595d0.

libraries/APO/Board_APM1.cpp

@@ -49,6 +49,11 @@ Board_APM1::Board_APM1(mode_e mode, MAV_TYPE vehicle, options_t options) : AP_Bo
     debug = &Serial;
     debug->println_P(PSTR("initialized debug port"));
 
+    // gcs
+    Serial3.begin(telemBaud, 128, 128);
+    gcsPort = &Serial3;
+    gcsPort->println_P(PSTR("initialized gcs port"));
+
     // hil
     Serial1.begin(hilBaud, 128, 128);
     hilPort = &Serial1;
@@ -174,11 +179,6 @@ Board_APM1::Board_APM1(mode_e mode, MAV_TYPE vehicle, options_t options) : AP_Bo
     imu = new AP_IMU_INS(ins, k_sensorCalib); 
     imu->init(IMU::WARM_START,delay,scheduler);
     debug->println_P(PSTR("setup completed"));
-	
-	// gcs
-    Serial3.begin(telemBaud, 128, 128);
-    gcsPort = &Serial3;
-    gcsPort->println_P(PSTR("initialized gcs port"));
 }
 
 } // namespace apo