Game Driver Metrics: add tests for GpuStatsPuller

Bug: 123529932
Test: atest GpuStatsPuller_test
Change-Id: I325f90d203539b51ee0a9deb2b048b8671e5e89a
diff --git a/cmds/statsd/Android.bp b/cmds/statsd/Android.bp
index 7298da6..ce07d6d 100644
--- a/cmds/statsd/Android.bp
+++ b/cmds/statsd/Android.bp
@@ -219,6 +219,7 @@
         "tests/anomaly/AnomalyTracker_test.cpp",
         "tests/ConfigManager_test.cpp",
         "tests/external/puller_util_test.cpp",
+        "tests/external/GpuStatsPuller_test.cpp",
         "tests/external/IncidentReportArgs_test.cpp",
         "tests/external/StatsPuller_test.cpp",
         "tests/indexed_priority_queue_test.cpp",