add lost RAM info to compact meminfo dump

Bug: 25756675

Change-Id: Ibfa37dac99268de8b482188eca9924c999e2b484
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index b4d2746..8ef8364 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -15075,6 +15075,10 @@
                 pw.print(" Lost RAM: "); pw.print(memInfo.getTotalSizeKb()
                         - totalPss - memInfo.getFreeSizeKb() - memInfo.getCachedSizeKb()
                         - memInfo.getKernelUsedSizeKb()); pw.println(" kB");
+            } else {
+                pw.print("lostram,"); pw.println(memInfo.getTotalSizeKb()
+                        - totalPss - memInfo.getFreeSizeKb() - memInfo.getCachedSizeKb()
+                        - memInfo.getKernelUsedSizeKb());
             }
             if (!brief) {
                 if (memInfo.getZramTotalSizeKb() != 0) {