Watchdog: dump graphics allocator

Bug: 111604912
Test: adb am hang
Change-Id: I9af52599cc2183c923a00b9782cdf190f6f6bcd7
diff --git a/services/core/java/com/android/server/Watchdog.java b/services/core/java/com/android/server/Watchdog.java
index e7a8221..713da30 100644
--- a/services/core/java/com/android/server/Watchdog.java
+++ b/services/core/java/com/android/server/Watchdog.java
@@ -100,6 +100,7 @@
         "android.hardware.audio@4.0::IDevicesFactory",
         "android.hardware.bluetooth@1.0::IBluetoothHci",
         "android.hardware.camera.provider@2.4::ICameraProvider",
+        "android.hardware.graphics.allocator@2.0::IAllocator",
         "android.hardware.graphics.composer@2.1::IComposer",
         "android.hardware.media.omx@1.0::IOmx",
         "android.hardware.media.omx@1.0::IOmxStore",