[dice] Add nostd version of libdiced_sample_inputs

This cl adds a version of libdiced_sample_inputs
that is compatible with the nostd environment.

This allows the sample inputs to be used as DICE
chain in the non-protected rialto later for testing
purposes.

Test: atest libdiced_sample_inputs.integration_test \
libdiced_sample_inputs_nostd.integration_test
Bug: 287233786

Change-Id: I6e96e051a8ba0b232521b259d5473520ac767383
diff --git a/diced/TEST_MAPPING b/diced/TEST_MAPPING
index 2f6be00..7628d25 100644
--- a/diced/TEST_MAPPING
+++ b/diced/TEST_MAPPING
@@ -15,5 +15,10 @@
     {
       "name": "libdiced_sample_inputs.integration_test"
     }
+  ],
+  "postsubmit": [
+    {
+      "name": "libdiced_sample_inputs_nostd.integration_test"
+    }
   ]
 }