Move procstats_pkg_proc into its own wrapper

We rely on atom messages having different types to make configs.

Test: manual
Change-Id: I40a7962f4a63e8b6c5c42f5ffec944e822408f03
diff --git a/atoms.proto b/atoms.proto
index fa3be26..f347867 100644
--- a/atoms.proto
+++ b/atoms.proto
@@ -216,7 +216,7 @@
         NumFingerprints num_fingerprints = 10031;
         DiskIo disk_io = 10032;
         PowerProfile power_profile = 10033;
-        ProcStats proc_stats_pkg_proc = 10034;
+        ProcStatsPkgProc proc_stats_pkg_proc = 10034;
         ProcessCpuTime process_cpu_time = 10035;
         NativeProcessMemoryState native_process_memory_state = 10036;
         CpuTimePerThreadFreq cpu_time_per_thread_freq = 10037;
@@ -3272,6 +3272,13 @@
     optional ProcessStatsSectionProto proc_stats_section = 1;
 }
 
+/**
+ * Pulled from ProcessStatsService.java
+ */
+message ProcStatsPkgProc {
+    optional ProcessStatsSectionProto proc_stats_section = 1;
+}
+
 message PowerProfileProto {
     optional double cpu_suspend = 1;