Add w,h information in convolve_round_test

Change-Id: I717ea9d572143fe9cc4dbce2524bfcf04a2998df

test/convolve_round_test.cc

diff --git a/test/convolve_round_test.cc b/test/convolve_round_test.cc
index 6f77dbb..5f69ad6 100644
--- a/test/convolve_round_test.cc
+++ b/test/convolve_round_test.cc
@@ -116,7 +116,8 @@
       for (int r = 0; r < h; ++r) {
         for (int c = 0; c < diff_wide; ++c) {
           ASSERT_EQ(dst_ref_[r * dst_stride + c], dst_[r * dst_stride + c])
-              << "Mismatch at r: " << r << " c: " << c << " test: " << test_num;
+              << "Mismatch at r: " << r << " c: " << c << " w: " << w
+              << " h: " << h << " test: " << test_num;
         }
       }