tests/radeon: radeon specific test

Initial test only include ttm test for stressing ttm memory
allocations.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
diff --git a/configure.ac b/configure.ac
index 95d64a7..1447785 100644
--- a/configure.ac
+++ b/configure.ac
@@ -283,6 +283,7 @@
 	tests/modeprint/Makefile
 	tests/modetest/Makefile
 	tests/kmstest/Makefile
+	tests/radeon/Makefile
 	tests/vbltest/Makefile
 	include/Makefile
 	include/drm/Makefile