Update TEST_MAPPING

Test: cd external/rust/crates && atest --host -c
Change-Id: I26fa6e92cf2972122fb87e11de87f49edc06666c
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 6d1be59..64da78f 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -2,6 +2,9 @@
 {
   "presubmit": [
     {
+      "name": "diced_test"
+    },
+    {
       "name": "keystore2_test"
     },
     {
@@ -16,6 +19,9 @@
   ],
   "presubmit-rust": [
     {
+      "name": "diced_test"
+    },
+    {
       "name": "keystore2_test"
     },
     {