Add the missing IDTX type optimization to hybrid txfm

Change-Id: I99b15e5270bfefe2eb3e982aeba06ed564540d73
diff --git a/test/av1_fht16x16_test.cc b/test/av1_fht16x16_test.cc
index 0eee35b..b1c4b53 100644
--- a/test/av1_fht16x16_test.cc
+++ b/test/av1_fht16x16_test.cc
@@ -184,6 +184,8 @@
              256),
   make_tuple(&av1_fht16x16_sse2, &av1_iht16x16_256_add_sse2, 8, AOM_BITS_8,
              256),
+  make_tuple(&av1_fht16x16_sse2, &av1_iht16x16_256_add_sse2, 9, AOM_BITS_8,
+             256),
   make_tuple(&av1_fht16x16_sse2, &av1_iht16x16_256_add_sse2, 10, AOM_BITS_8,
              256),
   make_tuple(&av1_fht16x16_sse2, &av1_iht16x16_256_add_sse2, 11, AOM_BITS_8,
@@ -223,6 +225,8 @@
              256),
   make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 8, AOM_BITS_8,
              256),
+  make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 9, AOM_BITS_8,
+             256),
   make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 10, AOM_BITS_8,
              256),
   make_tuple(&av1_fht16x16_avx2, &av1_iht16x16_256_add_avx2, 11, AOM_BITS_8,