Add logging for when cancel times out

Fixes: 124513621

Test: Builds
Change-Id: Idf8f8eaeaf6847dedc8b850798c98cb250fdc8ac
diff --git a/stats/enums/hardware/biometrics/enums.proto b/stats/enums/hardware/biometrics/enums.proto
index 973e3e6..f2e0638 100644
--- a/stats/enums/hardware/biometrics/enums.proto
+++ b/stats/enums/hardware/biometrics/enums.proto
@@ -55,4 +55,6 @@
     // When the HAL has a template that doesn't exist in Android Framework. The framework
     // is expected to notify the HAL to remove this template to stay in sync with the framework.
     ISSUE_UNKNOWN_TEMPLATE_ENROLLED_HAL = 3;
+    // When the HAL has not sent ERROR_CANCELED within the specified timeout.
+    ISSUE_CANCEL_TIMED_OUT = 4;
 }
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