Update PX4 Firmware metadata Tue Jul 9 04:10:20 UTC 2019

src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml

@@ -10597,6 +10597,17 @@ to fixed wing mode. Zero or negative values will produce an instant throttle ris
     <parameter default="0.2" name="EXFW_ROLL_P" type="FLOAT">
       <short_desc>EXFW_ROLL_P</short_desc>
     </parameter>
+    <parameter default="0" name="MPC_LAND_RC_HELP" type="INT32">
+      <short_desc>Enable user assisted descent speed for autonomous land routine.
+When enabled, descent speed will be equal to MPC_LAND_SPEED at half throttle,
+MPC_Z_VEL_MAX_DN at zero throttle, and 0.5 * MPC_LAND_SPEED at full throttle</short_desc>
+      <min>0</min>
+      <max>1</max>
+      <values>
+        <value code="0">Fixed descent speed of MPC_LAND_SPEED</value>
+        <value code="1">User assisted descent speed</value>
+      </values>
+    </parameter>
     <parameter default="0.1" name="RV_YAW_P" type="FLOAT">
       <short_desc>RV_YAW_P</short_desc>
     </parameter>