OtaDexopt: Fix after-ota space measure

am: 8d1d2ab5b9

Change-Id: I82df8c8a4e53a4448a5eac6392b1a5005af3d589

services/core/java/com/android/server/pm/OtaDexoptService.java

@@ -172,6 +172,7 @@ public class OtaDexoptService extends IOtaDexopt.Stub {
             Log.i(TAG, "Cleaning up OTA Dexopt state.");
         }
         mDexoptCommands = null;
+        availableSpaceAfterDexopt = getAvailableSpace();
 
         performMetricsLogging();
     }