Run CtsTelecomTestCases in presubmit

Run Telecom CTS in presubmit, and include a few fixes to prevent
flakiness in said presubmit.

Fixes: 158798240
Test: presubmit
Change-Id: I9b9e2f2604615e93301bc83be7c3545c6f80cb9c
diff --git a/telecomm/TEST_MAPPING b/telecomm/TEST_MAPPING
index d585666..c9903f9 100644
--- a/telecomm/TEST_MAPPING
+++ b/telecomm/TEST_MAPPING
@@ -23,6 +23,14 @@
           "exclude-annotation": "androidx.test.filters.FlakyTest"
         }
       ]
+    },
+    {
+      "name": "CtsTelecomTestCases",
+      "options": [
+        {
+          "exclude-annotation": "androidx.test.filters.FlakyTest"
+        }
+      ]
     }
   ]
 }