Migrate NetworkStack metrics off StatsLog.write

Now that the new metrics API can be used, NetworkStack
metrics need to migrate off the legacy StatsLog.write.

Bug: 130323000
Test: Test with ./out/host/linux-x86/bin/statsd_testdrive 121
      to ensure log properly
Test: Ensure NetworkStackStatsLog will be generated as expected
Test: atest NetworkStackTest

cherry-picking commit 55992798453.

Change-Id: I8c70503cf1d9f1d06f30a1936d2d88857d0cff53
Merged-In: I1bfe856d771bf56fe33790aea22eceae2001921a
diff --git a/bin/src/atoms.proto b/bin/src/atoms.proto
index 564e918..1ac6ea8 100644
--- a/bin/src/atoms.proto
+++ b/bin/src/atoms.proto
@@ -134,7 +134,7 @@
         LowMemReported low_mem_reported = 81;
         ThermalThrottlingStateChanged thermal_throttling = 86;
         NetworkDnsEventReported network_dns_event_reported = 116;
-        DataStallEvent data_stall_event = 121;
+        DataStallEvent data_stall_event = 121 [(log_from_module) = "network_stack"];
         BluetoothLinkLayerConnectionEvent bluetooth_link_layer_connection_event = 125;
         BluetoothAclConnectionStateChanged bluetooth_acl_connection_state_changed = 126;
         BluetoothScoConnectionStateChanged bluetooth_sco_connection_state_changed = 127;
@@ -165,7 +165,7 @@
         BluetoothSmpPairingEventReported bluetooth_smp_pairing_event_reported = 167;
         ProcessStartTime process_start_time = 169;
         BluetoothSocketConnectionStateChanged bluetooth_socket_connection_state_changed = 171;
-        NetworkStackReported network_stack_reported = 182;
+        NetworkStackReported network_stack_reported = 182 [(log_from_module) = "network_stack"];
     }
 
     // Pulled events will start at field 10000.