APMCameraSubComponent: support servo outputs up to 16

src/AutoPilotPlugins/APM/APMCameraSubComponent.qml

@@ -70,6 +70,8 @@ SetupPage {
             property Fact _rc12Function:        controller.getParameterFact(-1, "r.SERVO12_FUNCTION")
             property Fact _rc13Function:        controller.getParameterFact(-1, "r.SERVO13_FUNCTION")
             property Fact _rc14Function:        controller.getParameterFact(-1, "r.SERVO14_FUNCTION")
+            property Fact _rc15Function:        controller.getParameterFact(-1, "r.SERVO15_FUNCTION")
+            property Fact _rc16Function:        controller.getParameterFact(-1, "r.SERVO16_FUNCTION")
 
             // These enable/disable the options for setting up each axis
             property bool _tiltEnabled:         false
@@ -87,7 +89,7 @@ SetupPage {
             readonly property int   _rcFunctionMountTilt:           7
             readonly property int   _rcFunctionMountRoll:           8
             readonly property int   _firstGimbalOutChannel:         5
-            readonly property int   _lastGimbalOutChannel:          14
+            readonly property int   _lastGimbalOutChannel:          16
             readonly property int   _mountDefaultModeRCTargetting:  3
 
             Component.onCompleted: {
@@ -161,6 +163,8 @@ SetupPage {
             Connections { target: _rc12Function; onValueChanged: calcGimbalOutValues() }
             Connections { target: _rc13Function; onValueChanged: calcGimbalOutValues() }
             Connections { target: _rc14Function; onValueChanged: calcGimbalOutValues() }
+            Connections { target: _rc15Function; onValueChanged: calcGimbalOutValues() }
+            Connections { target: _rc16Function; onValueChanged: calcGimbalOutValues() }
 
             // Whenever an MNT_RC_IN_* setting is changed make sure to turn on RC targeting
             Connections {
@@ -191,6 +195,8 @@ SetupPage {
                 ListElement { text: qsTr("Channel 12"); value: 12 }
                 ListElement { text: qsTr("Channel 13"); value: 13 }
                 ListElement { text: qsTr("Channel 14"); value: 14 }
+                ListElement { text: qsTr("Channel 15"); value: 15 }
+                ListElement { text: qsTr("Channel 16"); value: 16 }
             }
 
             QGCCheckBox {