Fix cpplint whitespace/comments issues

Change-Id: Iae286862c85fb8fd8901eae1204cd6d271d69496
diff --git a/compiler/dex/quick/arm/utility_arm.cc b/compiler/dex/quick/arm/utility_arm.cc
index 1ea0a64..afc8a66 100644
--- a/compiler/dex/quick/arm/utility_arm.cc
+++ b/compiler/dex/quick/arm/utility_arm.cc
@@ -507,7 +507,7 @@
       alt_opcode = kThumb2EorRRR;
       break;
     case kOpMul:
-      //TUNING: power of 2, shift & add
+      // TUNING: power of 2, shift & add
       mod_imm = -1;
       alt_opcode = kThumb2MulRRR;
       break;
@@ -662,7 +662,7 @@
   }
 
   switch (size) {
-    case kDouble: // fall-through
+    case kDouble:  // fall-through
     case kSingle:
       reg_ptr = AllocTemp();
       if (scale) {
@@ -726,7 +726,7 @@
   }
 
   switch (size) {
-    case kDouble: // fall-through
+    case kDouble:  // fall-through
     case kSingle:
       reg_ptr = AllocTemp();
       if (scale) {