Merge branch 'device-config-api' into 'master'

CDM version change to 3.2.9-SNAPSHOT

See merge request entgra/carbon-device-mgt-plugins!73

pom.xml

@@ -1242,7 +1242,7 @@
         <javax.ws.rs.version>1.1.1</javax.ws.rs.version>
 
         <!-- Carbon Device Management -->
-        <carbon.devicemgt.version>3.2.8</carbon.devicemgt.version>
+        <carbon.devicemgt.version>3.2.9-SNAPSHOT</carbon.devicemgt.version>
         <carbon.devicemgt.version.range>[3.1.0, 4.0.0)</carbon.devicemgt.version.range>
 
         <!-- Carbon App Management -->