Keep CarrierAppIntegrationTestCases in internal cf.

Bug: 302382476
Test: presubmit

Change-Id: I631483c32c0295b0727d0a98f9bd673f3d396ceb
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 3831b6b..04a8efb 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -9,7 +9,8 @@
       ]
     },
     {
-      "name": "CarrierAppIntegrationTestCases"
+      "name": "CarrierAppIntegrationTestCases",
+      "keywords": ["internal"]
     },
     {
       "name": "CtsSimRestrictedApisTestCases",