Update keystore-statsd proxy for logging RkpPoolStats atom.

This CL accommodates some updates to RkpPoolStats AIDL atom introduced
during RkpPoolStats logging in keystore.

Ignore-AOSP-First: No mergepath to AOSP.
Bug: 184301651
Test: Statsd test drive script.
Change-Id: Id412b34f0726ffc8dda32afbf95c1e8b2318935f

services/core/java/com/android/server/stats/pull/StatsPullAtomService.java

@@ -4135,7 +4135,8 @@ public class StatsPullAtomService extends SystemService {
             }
             RkpPoolStats atom = atomWrapper.payload.getRkpPoolStats();
             pulledData.add(FrameworkStatsLog.buildStatsEvent(
-                    FrameworkStatsLog.RKP_POOL_STATS, atom.pool_status, atom.count_of_keys));
+                    FrameworkStatsLog.RKP_POOL_STATS, atom.security_level, atom.expiring,
+                    atom.unassigned, atom.attested, atom.total));
         }
         return StatsManager.PULL_SUCCESS;
     }