Fix vp9_end_to_end_test for vp10 HBD

This test is failing when no experiments are turned on. PSNR is
31.96 when the threshold is 32.

broken since:
0d6980d Remove swap buffer speed feature

Change-Id: I3c29815b40d5282c37f52f4345b56992f8558b2e
diff --git a/test/vp9_end_to_end_test.cc b/test/vp9_end_to_end_test.cc
index 98e9e30..a32265e 100644
--- a/test/vp9_end_to_end_test.cc
+++ b/test/vp9_end_to_end_test.cc
@@ -32,9 +32,9 @@
 #if CONFIG_VP10_ENCODER && CONFIG_VP9_HIGHBITDEPTH
   { 36.0, 37.0, 37.0, 37.0, 37.0 },
   { 31.0, 36.0, 36.0, 36.0, 36.0 },
-  { 32.0, 35.0, 35.0, 35.0, 35.0 },
-  { 32.0, 34.0, 34.0, 34.0, 34.0 },
-  { 32.0, 33.0, 33.0, 33.0, 33.0 },
+  { 31.0, 35.0, 35.0, 35.0, 35.0 },
+  { 31.0, 34.0, 34.0, 34.0, 34.0 },
+  { 31.0, 33.0, 33.0, 33.0, 33.0 },
   { 31.0, 32.0, 32.0, 32.0, 32.0 },
   { 30.0, 31.0, 31.0, 31.0, 31.0 },
   { 29.0, 30.0, 30.0, 30.0, 30.0 },