Enable checkstyle whitespace rules

Enable checkstyle whitespace rules and fix the violations that are reported.
Also suppressed checkstyle errors from Topology.java, which is machine generated.

Change-Id: I7c608321359f31b3b70c77a20b77e46306d4d2ec
diff --git a/src/main/java/net/onrc/onos/core/datastore/ramcloud/RCClient.java b/src/main/java/net/onrc/onos/core/datastore/ramcloud/RCClient.java
index 41fda9e..4d228ef 100644
--- a/src/main/java/net/onrc/onos/core/datastore/ramcloud/RCClient.java
+++ b/src/main/java/net/onrc/onos/core/datastore/ramcloud/RCClient.java
@@ -324,7 +324,7 @@
     public boolean multiRead(final Collection<IMultiEntryOperation> ops) {
 
         if (ops.size() <= MAX_MULTI_READS && ops instanceof ArrayList) {
-            @SuppressWarnings({"unchecked", "rawtypes"})
+            @SuppressWarnings({ "unchecked", "rawtypes" })
             final ArrayList<RCMultiEntryOperation> arrays = (ArrayList) ops;
             return multiReadInternal(arrays);
         }
@@ -357,7 +357,7 @@
     public boolean multiWrite(final List<IMultiEntryOperation> ops) {
 
         if (ops.size() <= MAX_MULTI_WRITES && ops instanceof ArrayList) {
-            @SuppressWarnings({"unchecked", "rawtypes"})
+            @SuppressWarnings({ "unchecked", "rawtypes" })
             final ArrayList<RCMultiEntryOperation> arrays = (ArrayList) ops;
             return multiWriteInternal(arrays);
         }