Update PX4 Firmware metadata Mon Feb 4 14:39:43 UTC 2019

src/AutoPilotPlugins/PX4/AirframeFactMetaData.xml

@@ -363,6 +363,12 @@
       <maintainer>Lorenz Meier &lt;lorenz@px4.io&gt;</maintainer>
       <type>Quadrotor x</type>
     </airframe>
+    <airframe id="4052" maintainer="Beat Kueng &lt;beat-kueng@gmx.net&gt;" name="HolyBro QAV250">
+      <class>Copter</class>
+      <maintainer>Beat Kueng &lt;beat-kueng@gmx.net&gt;</maintainer>
+      <type>Quadrotor x</type>
+      <url>https://docs.px4.io/en/frames_multicopter/holybro_qav250_pixhawk4_mini.html</url>
+    </airframe>
     <airframe id="4060" maintainer="James Goppert &lt;james.goppert@gmail.com&gt;" name="DJI Matrice 100">
       <class>Copter</class>
       <maintainer>James Goppert &lt;james.goppert@gmail.com&gt;</maintainer>