Add test for the terminal app

Bug: 375051310
Test: watch TH
Change-Id: I85f22d7ff66cffc8d40dc8186d1ba4e380e4ff77
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 2112125..8a0711c 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -72,6 +72,9 @@
   "ferrochrome-postsubmit": [
     {
       "name": "ferrochrome-tests"
+    },
+    {
+      "name": "TerminalAppTests"
     }
   ],
   "postsubmit": [