Update TEST_MAPPING am: c464040057 am: 621ee75e25 am: d9fcaeb21b

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/crossbeam-epoch/+/1806078

Change-Id: Ia7aad75c427b0d8787542ed81b4e3ba3b0e536b7
diff --git a/TEST_MAPPING b/TEST_MAPPING
index edda712..9f94cda 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -2,6 +2,15 @@
 {
   "presubmit": [
     {
+      "name": "base64_device_test_tests_decode"
+    },
+    {
+      "name": "base64_device_test_tests_encode"
+    },
+    {
+      "name": "base64_device_test_tests_helpers"
+    },
+    {
       "name": "crossbeam-epoch_device_test_src_lib"
     },
     {