generate unit test coverage xml for codecov upload

usbSerialForAndroid/coverage.gradle

@@ -55,7 +55,7 @@ project.gradle.taskGraph.whenReady {
 task jacocoTestReport(type: JacocoReport ,
         dependsOn: ['compileAnyDeviceDebugSources' /*'testAnyDeviceDebugUnitTest' , 'create<device>DebugCoverageReport'*/]) {
     reports {
-        xml.enabled = false
+        xml.enabled = true
         html.enabled = true
     }