add jamming_state to gps sensor module

Signed-off-by: Claudio Micheli <claudio@auterion.com>

msg/sensor_gps.msg

@@ -19,6 +19,7 @@ float32 vdop			# Vertical dilution of precision
 
 int32 noise_per_ms		# GPS noise per millisecond
 int32 jamming_indicator		# indicates jamming is occurring
+uint8 jamming_state		# indicates whether jamming has been detected or suspected by the receivers. O: Unknown, 1: OK, 2: Warning, 3: Critical
 
 float32 vel_m_s			# GPS ground speed, (metres/sec)
 float32 vel_n_m_s		# GPS North velocity, (metres/sec)

src/modules/sensors/vehicle_gps_position/VehicleGPSPosition.cpp

@@ -687,6 +687,7 @@ void VehicleGPSPosition::Publish(const sensor_gps_s &gps, uint8_t selected)
 	gps_output.vdop = gps.vdop;
 	gps_output.noise_per_ms = gps.noise_per_ms;
 	gps_output.jamming_indicator = gps.jamming_indicator;
+	gps_output.jamming_state = gps.jamming_state;
 	gps_output.vel_m_s = gps.vel_m_s;
 	gps_output.vel_n_m_s = gps.vel_n_m_s;
 	gps_output.vel_e_m_s = gps.vel_e_m_s;