Include both RSS and PSS info in MemItem protobuf dump

Bug: 117880513
Test: adb shell incident meminfo | incident_report -i -
Test: cts-tradefed run cts-dev --module \
      CtsIncidentHostTestCases --test \
      com.android.server.cts.MemInfoIncidentTest

Change-Id: I5445418f037004d66f1ec44fd91dd394f3776ca4
diff --git a/core/proto/android/server/activitymanagerservice.proto b/core/proto/android/server/activitymanagerservice.proto
index a1ff9b9..d54b6b0 100644
--- a/core/proto/android/server/activitymanagerservice.proto
+++ b/core/proto/android/server/activitymanagerservice.proto
@@ -367,10 +367,8 @@
         optional int32 id = 3;
         optional bool is_proc = 4;
         optional bool has_activities = 5;
-        oneof ss_kb {
-            int64 pss_kb = 6;
-            int64 rss_kb = 9;
-        }
+        optional int64 pss_kb = 6;
+        optional int64 rss_kb = 9;
         optional int64 swap_pss_kb = 7;
         repeated MemItem sub_items = 8;
     }