activate mc_pos_ctrl module to be able to access MPC_OBS_AVOID parameter

boards/stm/32f4discovery/default.cmake

+
+px4_add_board(
+	PLATFORM nuttx
+	VENDOR stm
+	MODEL 32f4discovery
+	TOOLCHAIN arm-none-eabi
+	ARCHITECTURE cortex-m4
+	ROMFSROOT px4fmu_common
+	#TESTING
+
+	DRIVERS
+		#barometer # all available barometer drivers
+		#batt_smbus
+		#camera_trigger
+		#differential_pressure # all available differential pressure drivers
+		#distance_sensor # all available distance sensor drivers
+		#gps
+		#heater
+		#imu # all available imu drivers
+		#irlock
+		#lights/blinkm
+		#lights/oreoled
+		#lights/rgbled
+		#magnetometer # all available magnetometer drivers
+		#mkblctrl
+		#pca9685
+		#pwm_input
+		#pwm_out_sim
+		#px4flow
+		#px4fmu
+		#rc_input
+		stm32
+		#stm32/adc
+		#stm32/tone_alarm
+		#tap_esc
+		#telemetry # all available telemetry drivers
+		#test_ppm
+		#uavcan
+
+	MODULES
+		attitude_estimator_q
+		camera_feedback
+		commander
+		dataman
+		ekf2
+		events
+		fw_att_control
+		fw_pos_control_l1
+		gnd_att_control
+		gnd_pos_control
+		land_detector
+		landing_target_estimator
+		load_mon
+		local_position_estimator
+		logger
+		mavlink
+		#mc_att_control
+		mc_pos_control
+		#navigator
+		position_estimator_inav
+		#sensors
+		#vmount
+		#vtol_att_control
+		wind_estimator
+
+	SYSTEMCMDS
+		bl_update
+		config
+		dumpfile
+		esc_calib
+		hardfault_log
+		led_control
+		mixer
+		motor_ramp
+		motor_test
+		mtd
+		nshterm
+		param
+		perf
+		pwm
+		reboot
+		reflect
+		sd_bench
+		shutdown
+		#tests # tests and test runner
+		top
+		topic_listener
+		tune_control
+		usb_connected
+		ver
+
+	EXAMPLES
+		bottle_drop # OBC challenge
+		fixedwing_control # Tutorial code from https://px4.io/dev/example_fixedwing_control
+		hello
+		#hwtest # Hardware test
+		#matlab_csv_serial
+		#publisher
+		px4_mavlink_debug # Tutorial code from https://px4.io/dev/debug_values
+		px4_simple_app # Tutorial code from https://px4.io/dev/px4_simple_app
+		rover_steering_control # Rover example app
+		segway
+		#subscriber
+		uuv_example_app
+
+	)