HDDS-5077. Include dev-support in ozone source distribution (#2134)

Change-Id: Ifccebd5d7f723fc6b5c0a303514ecd1009c38a78
(cherry picked from commit ccd046e1417e36bc9ae96b6dda59d0b6942c4739)
diff --git a/hadoop-ozone/dist/src/main/assemblies/ozone-src.xml b/hadoop-ozone/dist/src/main/assemblies/ozone-src.xml
index 5908c6a..9c7dd11 100644
--- a/hadoop-ozone/dist/src/main/assemblies/ozone-src.xml
+++ b/hadoop-ozone/dist/src/main/assemblies/ozone-src.xml
@@ -62,6 +62,10 @@
       </includes>
     </fileSet>
     <fileSet>
+      <directory>dev-support</directory>
+      <useDefaultExcludes>true</useDefaultExcludes>
+    </fileSet>
+    <fileSet>
       <directory>hadoop-hdds</directory>
       <useDefaultExcludes>true</useDefaultExcludes>
       <excludes>