disable packed texture tests on TSAN bot

https://build.chromium.org/p/client.skia/builders/Test-Ubuntu-Clang-Golo-GPU-GT610-x86_64-Release-TSAN
is flaky.

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=3662

Change-Id: I5c80970cb81db71f4acc89dc287952b1d2a3656c
Reviewed-on: https://skia-review.googlesource.com/3662
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
diff --git a/infra/bots/recipes/swarm_test.py b/infra/bots/recipes/swarm_test.py
index 480d78d..19de982 100644
--- a/infra/bots/recipes/swarm_test.py
+++ b/infra/bots/recipes/swarm_test.py
@@ -350,6 +350,8 @@
 
   if 'TSAN' in bot:
     match.extend(['~ReadWriteAlpha'])   # Flaky on TSAN-covered on nvidia bots.
+    match.extend(['~RGBA4444TextureTest',  # Flakier than they are important.
+                  '~RGB565TextureTest'])
 
   if 'Vulkan' in bot and 'Adreno' in bot:
     # skia:5777