HDDS-1218. Do the dist-layout-stitching for Ozone after the test-compile phase. Contributed by Marton Elek.

hadoop-ozone/dist/pom.xml

@@ -126,7 +126,7 @@
         <executions>
           <execution>
             <id>dist</id>
-            <phase>compile</phase>
+            <phase>prepare-package</phase>
             <goals>
               <goal>exec</goal>
             </goals>