Enable aq mode on datarate tests.

Change-Id: I2d7e8bed88fb7a29ed2ebdaf081dce0a6bd0f6f4

test/datarate_test.cc

diff --git a/test/datarate_test.cc b/test/datarate_test.cc
index f6bf7ff..856d4e8 100644
--- a/test/datarate_test.cc
+++ b/test/datarate_test.cc
@@ -56,7 +56,10 @@
 
   virtual void PreEncodeFrameHook(::libaom_test::VideoSource *video,
                                   ::libaom_test::Encoder *encoder) {
-    if (video->frame() == 0) encoder->Control(AOME_SET_CPUUSED, set_cpu_used_);
+    if (video->frame() == 0) {
+      encoder->Control(AOME_SET_CPUUSED, set_cpu_used_);
+      encoder->Control(AV1E_SET_AQ_MODE, aq_mode_);
+    }
 
     if (denoiser_offon_test_) {
       ASSERT_GT(denoiser_offon_period_, 0)