AP_HAL_ChibiOS: allow specification of AUTOBUILD_TARGETS in hwdef files

libraries/AP_HAL_ChibiOS/hwdef/CubeGreen-solo/hwdef.dat

@@ -9,3 +9,5 @@ include ../CubeBlack/hwdef.dat
 # pull Solo's default parameters from /Tools/Frame_params
 # these are parameters the Solo requires for proper operation that are different from the 4 standard defaults.
 env DEFAULT_PARAMETERS 'Tools/Frame_params/Solo_Copter-4_GreenCube.param'
+
+AUTOBUILD_TARGETS Copter

libraries/AP_HAL_ChibiOS/hwdef/CubeSolo/hwdef.dat

@@ -51,3 +51,5 @@ define HAL_PROBE_EXTERNAL_I2C_COMPASSES
 
 define HAL_OREO_LED_ENABLED 1
 define HAL_IMU_TEMP_MARGIN_LOW_DEFAULT 5
+
+AUTOBUILD_TARGETS Copter

libraries/AP_HAL_ChibiOS/hwdef/Swan-K1/hwdef.dat

@@ -36,3 +36,5 @@ define HAL_WITH_RAMTRON 1
 
 # use a longer frame gap detector for more robust SBUS with H12 controller
 define HAL_SBUS_FRAME_GAP 5000U
+
+AUTOBUILD_TARGETS Plane

libraries/AP_HAL_ChibiOS/hwdef/skyviper-journey/hwdef.dat

@@ -128,3 +128,5 @@ define AP_PARAM_MAX_EMBEDDED_PARAM 8192
 # Disable un-needed hardware drivers
 define HAL_WITH_ESC_TELEM 0
 define AP_FETTEC_ONEWIRE_ENABLED 0
+
+AUTOBUILD_TARGETS Copter

libraries/AP_HAL_ChibiOS/hwdef/skyviper-v2450/hwdef.dat

@@ -113,3 +113,5 @@ define AP_MOTORS_FRAME_QUAD_ENABLED 1
 define COMPASS_MAX_SENSORS 1
 define BARO_MAX_INSTANCES 1
 define INS_MAX_INSTANCES 1
+
+AUTOBUILD_TARGETS Copter