try multithread coverit build

Makefile

@@ -76,7 +76,7 @@ PPRZCENTER=sw/supervision
 MISC=sw/ground_segment/misc
 LOGALIZER=sw/logalizer
 
-SUBDIRS = $(PPRZCENTER) $(MISC) $(LOGALIZER) sw/tools
+SUBDIRS = $(PPRZCENTER) $(MISC) $(LOGALIZER) $(TOOLS)
 
 #
 # Communication protocol version

conf/conf_tests_coverity.xml

@@ -131,28 +131,6 @@
    settings_modules="modules/digital_cam.xml modules/light.xml modules/gps_ubx_ucenter.xml modules/geo_mag.xml modules/air_data.xml modules/gps.xml modules/nav_basic_fw.xml modules/guidance_energy.xml modules/stabilization_attitude_fw.xml modules/ahrs_int_cmpl_quat.xml modules/imu_common.xml"
    gui_color="#ffffffffffff"
   />
-  <aircraft
-   name="Microjet"
-   ac_id="14"
-   airframe="airframes/examples/microjet.xml"
-   radio="radios/cockpitMM.xml"
-   telemetry="telemetry/default_fixedwing.xml"
-   flight_plan="flight_plans/basic.xml"
-   settings="settings/fixedwing_basic.xml"
-   settings_modules="modules/nav_survey_poly_osam.xml modules/nav_smooth.xml modules/nav_basic_fw.xml modules/guidance_basic_fw.xml modules/stabilization_attitude_fw.xml modules/infrared_adc.xml modules/gps.xml modules/imu_common.xml modules/tune_airspeed.xml"
-   gui_color="#6293ba"
-  />
-  <aircraft
-   name="Microjet_LisaM"
-   ac_id="15"
-   airframe="airframes/examples/microjet_lisa_m.xml"
-   radio="radios/cockpitSX.xml"
-   telemetry="telemetry/default_fixedwing_imu.xml"
-   flight_plan="flight_plans/nav_modules.xml"
-   settings="settings/fixedwing_basic.xml settings/control/ctl_dash_loiter_trim.xml settings/nps.xml"
-   settings_modules="modules/nav_survey_poly_osam.xml modules/nav_smooth.xml modules/air_data.xml modules/nav_basic_fw.xml modules/guidance_basic_fw.xml modules/stabilization_attitude_fw.xml modules/ahrs_int_cmpl_quat.xml modules/gps.xml modules/imu_common.xml"
-   gui_color="blue"
-  />
   <aircraft
    name="Microjet_Twog_Aspirin"
    ac_id="16"
@@ -296,17 +274,6 @@
    settings_modules="modules/digital_cam.xml modules/air_data.xml modules/nav_basic_fw.xml modules/guidance_energy.xml modules/stabilization_adaptive_fw.xml modules/ahrs_int_cmpl_quat.xml modules/imu_common.xml modules/gps.xml"
    gui_color="blue"
   />
-  <aircraft
-   name="Twog_IMU"
-   ac_id="27"
-   airframe="airframes/examples/twog_analogimu.xml"
-   radio="radios/cockpitSX.xml"
-   telemetry="telemetry/default_fixedwing_imu.xml"
-   flight_plan="flight_plans/versatile.xml"
-   settings="settings/fixedwing_basic.xml"
-   settings_modules="modules/nav_basic_fw.xml modules/gps.xml modules/ahrs_float_dcm.xml modules/imu_common.xml modules/guidance_basic_fw.xml modules/stabilization_attitude_fw.xml"
-   gui_color="blue"
-  />
   <aircraft
    name="Umarim_Lite"
    ac_id="28"