Fix libgui tests.

Update IGraphicsBufferProducerTest to the new maximum enum value which is now
NATIVE_WINDOW_BUFFER_AGE. Update SurfaceTextureGLToGL_test to use the correct
counts for GraphicsBuffer refs.

Buf: 18138368

Change-Id: Ie2f7e00b414d63100b16944e3ab36b1ffceecd57
diff --git a/libs/gui/tests/IGraphicBufferProducer_test.cpp b/libs/gui/tests/IGraphicBufferProducer_test.cpp
index ff58420..4ef9a69 100644
--- a/libs/gui/tests/IGraphicBufferProducer_test.cpp
+++ b/libs/gui/tests/IGraphicBufferProducer_test.cpp
@@ -299,7 +299,7 @@
     ASSERT_NO_FATAL_FAILURE(ConnectProducer());
 
     // One past the end of the last 'query' enum value. Update this if we add more enums.
-    const int NATIVE_WINDOW_QUERY_LAST_OFF_BY_ONE = NATIVE_WINDOW_DEFAULT_DATASPACE + 1;
+    const int NATIVE_WINDOW_QUERY_LAST_OFF_BY_ONE = NATIVE_WINDOW_BUFFER_AGE + 1;
 
     int value;
     // What was out of range