add swapPss of native process to totalSwapPss

Currently swapPss of native process is not counted into totalSwapPss.
This change fixes this.

Change-Id: Ia2d9261f91e969ceef0519ffec8c8ab5dbcb2a5e
Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com>

services/core/java/com/android/server/am/ActivityManagerService.java

@@ -17394,6 +17394,7 @@ public class ActivityManagerService extends IActivityManager.Stub
                         final long myTotalPss = mi.getTotalPss();
                         final long myTotalSwapPss = mi.getTotalSwappedOutPss();
                         totalPss += myTotalPss;
+                        totalSwapPss += myTotalSwapPss;
                         nativeProcTotalPss += myTotalPss;
 
                         MemItem pssItem = new MemItem(st.name + " (pid " + st.pid + ")",