aconfig: add write api cpp test to presubmit

Bug: b/321077378
Test atest -c

Change-Id: Ib04280f25eb6c4de6ff1523579e6ac96a868ff1d
diff --git a/tools/aconfig/TEST_MAPPING b/tools/aconfig/TEST_MAPPING
index 638b92a..b7ff8ef 100644
--- a/tools/aconfig/TEST_MAPPING
+++ b/tools/aconfig/TEST_MAPPING
@@ -84,6 +84,10 @@
       "name": "aconfig_storage_write_api.test.rust"
     },
     {
+      // aconfig_storage write api cpp integration tests
+      "name": "aconfig_storage_write_api.test.cpp"
+    },
+    {
       // aconfig_storage read api rust integration tests
       "name": "aconfig_storage_read_api.test.rust"
     },
@@ -93,9 +97,5 @@
     }
   ],
   "postsubmit": [
-    {
-      // aconfig_storage write api cpp integration tests
-      "name": "aconfig_storage_write_api.test.cpp"
-    }
   ]
 }