[dice] Add integration tests for libdiced_open_dice[_nostd]

Test: atest libdiced_open_dice.integration_test \
libdiced_open_dice_nostd.integration_test
Bug: 267575445

Change-Id: Ie479bfc1f864d775632e3250aea04d93b2070942
diff --git a/diced/TEST_MAPPING b/diced/TEST_MAPPING
index d81efdd..b3d8ac4 100644
--- a/diced/TEST_MAPPING
+++ b/diced/TEST_MAPPING
@@ -1,6 +1,12 @@
 {
   "presubmit": [
     {
+      "name": "libdiced_open_dice.integration_test"
+    },
+    {
+      "name": "libdiced_open_dice_nostd.integration_test"
+    },
+    {
       "name": "diced_utils_test"
     },
     {