AVxEncoderThreadTestLarge: Disable row-mt tests.

test/ethread_test.cc

diff --git a/test/ethread_test.cc b/test/ethread_test.cc
index 4d9edbf..c9c7105 100644
--- a/test/ethread_test.cc
+++ b/test/ethread_test.cc
@@ -428,12 +428,13 @@
 GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(AVxEncoderThreadTest);
 
 // Test cpu_used 0, 1, 3 and 5.
+// TODO(urvang): Once https://gitlab.com/AOMediaCodec/avm/-/issues/79 is fixed,
+// change last parameter back to (0, 1) to re-enable unit tests with row-mt = 1.
 AV1_INSTANTIATE_TEST_SUITE(AVxEncoderThreadTestLarge,
                            ::testing::Values(::libaom_test::kOnePassGood),
                            ::testing::Values(0, 1, 3, 5),
                            ::testing::Values(0, 1, 2, 6),
-                           ::testing::Values(0, 1, 2, 6),
-                           ::testing::Values(0, 1));
+                           ::testing::Values(0, 1, 2, 6), ::testing::Values(0));
 
 class AVxEncoderThreadLSTest : public AVxEncoderThreadTest {
   virtual void SetTileSize(libaom_test::Encoder *encoder) {