Adding the missing social.xml file.

modules/distribution/src/assembly/bin.xml

@@ -1594,6 +1594,14 @@
                 ${pom.artifactId}-${pom.version}/conf/
             </outputDirectory>
         </file>
+        <file>
+            <source>
+                ../p2-profile/iot-core-profile/target/wso2carbon-core-${carbon.kernel.version}/repository/conf/social.xml
+            </source>
+            <outputDirectory>
+                ${pom.artifactId}-${pom.version}/conf/
+            </outputDirectory>
+        </file>
         <file>
             <source>
                 ../p2-profile/iot-core-profile/target/wso2carbon-core-${carbon.kernel.version}/repository/conf/identity/entitlement.properties