add images to raspberrypi

features/device-mgt-iot-raspberrypi-feature/org.wso2.carbon.device.mgt.iot.raspberrypi.feature/src/main/resources/jaggeryapps/devicemgt/app/units/cdmf.unit.device.type.raspberrypi.device-view/device-view.hbs

@@ -19,7 +19,7 @@
                 <div id="device_overview">
                     <div class="media-left media-middle asset-image col-xs-2 col-sm-2 col-md-2 col-lg-2">
                         <div class="thumbnail icon">
-                            <img src="{{@unit.publicUri}}/images/thumb.png"/>
+                            <img src="{{@unit.publicUri}}/images/respberry-icon.png"/>
                         </div>
                     </div>
                     <div class="media-body asset-desc add-padding-left-5x">

features/device-mgt-iot-raspberrypi-feature/org.wso2.carbon.device.mgt.iot.raspberrypi.feature/src/main/resources/jaggeryapps/devicemgt/app/units/cdmf.unit.device.type.raspberrypi.type-view/type-view.hbs

@@ -5,7 +5,7 @@
         <p class="margin-bottom-double light-grey ">Connect your RaspberryPi device to the WSO2 IoT Server.</p>
     </div>
     <div class="col-xs-12 col-sm-6 col-md-4 col-lg-4 padding-top">
-        <img src="{{@unit.publicUri}}/images/thumb.png" class="img-responsive">
+        <img src="{{@unit.publicUri}}/images/respberry-icon.png" class="img-responsive">
     </div>
 
     <div class="col-xs-12 col-sm-6 col-md-8 col-lg-8 padding-top">