Adding missing parameters

components/mobile-plugins/android-plugin/org.wso2.carbon.device.mgt.mobile.android.api/src/main/java/org/wso2/carbon/mdm/services/android/bean/UpgradeFirmware.java

@@ -29,9 +29,12 @@ import java.io.Serializable;
 @ApiModel(value = "UpgradeFirmware",
         description = "This class carries all information related to UpgradeFirmware.")
 public class UpgradeFirmware extends AndroidOperation implements Serializable {
-    @ApiModelProperty(name = "schedule", value = "Schedule of the UpgradeFirmware.", required = true)
+    @ApiModelProperty(name = "schedule", value = "Schedule of the UpgradeFirmware.")
     private String schedule;
 
+    @ApiModelProperty(name = "server", value = "Firmware package server.")
+    private String server;
+
     public String getSchedule() {
         return schedule;
     }
@@ -40,4 +43,12 @@ public class UpgradeFirmware extends AndroidOperation implements Serializable {
         this.schedule = schedule;
     }
 
+    public String getServer() {
+        return server;
+    }
+
+    public void setServer(String server) {
+        this.server = server;
+    }
+
 }