Include ahat in the general-tests tradefed suite.

Specifically, this makes ahat available on the classpath of the
general-tests tradefed suite. It will be used by libcore tests that
run there.

Change-Id: If3fa3a78c6b9c4ce4df22305bcd8d731b9466671
Bug: 67283029
Bug: 67999970
Test: make ahat tradefed-all
diff --git a/tools/ahat/Android.mk b/tools/ahat/Android.mk
index 5eccba1..ed2d5f2 100644
--- a/tools/ahat/Android.mk
+++ b/tools/ahat/Android.mk
@@ -30,6 +30,10 @@
 # Let users with Java 7 run ahat (b/28303627)
 LOCAL_JAVA_LANGUAGE_VERSION := 1.7
 
+# Make this available on the classpath of the general-tests tradefed suite.
+# It is used by libcore tests that run there.
+LOCAL_COMPATIBILITY_SUITE := general-tests
+
 include $(BUILD_HOST_JAVA_LIBRARY)
 
 # --- ahat script ----------------