Watchdog: add graphics composer to HALs of interest

Bug: 37152880
Test: adb shell am hang --allow-restart
Change-Id: Ic380da057f6f7529a9296cf32f46064c995b0caa
diff --git a/services/core/java/com/android/server/Watchdog.java b/services/core/java/com/android/server/Watchdog.java
index 80f89fc..feb9ce4 100644
--- a/services/core/java/com/android/server/Watchdog.java
+++ b/services/core/java/com/android/server/Watchdog.java
@@ -83,6 +83,7 @@
         "android.hardware.audio@2.0::IDevicesFactory",
         "android.hardware.bluetooth@1.0::IBluetoothHci",
         "android.hardware.camera.provider@2.4::ICameraProvider",
+        "android.hardware.graphics.composer@2.1::IComposer",
         "android.hardware.vr@1.0::IVr",
         "android.hardware.media.omx@1.0::IOmx"
     );