system_api: Add new healthd mojo service

Add CrosHealthdAshEventReporter constant.

BUG=b:267968613
TEST=Build with other CLs.

Change-Id: I4c9323863245eb7814ec066c3f6cff0c884b60c0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/4225617
Commit-Queue: Chung-sheng Wu <chungsheng@google.com>
Auto-Submit: Chung-sheng Wu <chungsheng@google.com>
Tested-by: Chung-sheng Wu <chungsheng@google.com>
Reviewed-by: Eric Caruso <ejcaruso@chromium.org>
NOKEYCHECK=True
GitOrigin-RevId: 31ae1a05e25013fc335ad852ba9f9b6a4002bde8
diff --git a/mojo/service_constants.h b/mojo/service_constants.h
index 6448857..03524ce 100644
--- a/mojo/service_constants.h
+++ b/mojo/service_constants.h
@@ -14,6 +14,7 @@
     "ChromiumNetworkDiagnosticsRoutines";
 constexpr char kChromiumNetworkHealth[] = "ChromiumNetworkHealth";
 constexpr char kCrosDcadService[] = "CrosDcadService";
+constexpr char kCrosHealthdAshEventReporter[] = "CrosHealthdAshEventReporter";
 constexpr char kCrosHealthdDiagnostics[] = "CrosHealthdDiagnostics";
 constexpr char kCrosHealthdEvent[] = "CrosHealthdEvent";
 constexpr char kCrosHealthdProbe[] = "CrosHealthdProbe";