Baseline Lint FlaggedApi violations

The Lint FlaggedApi checks are currently configured as warnings. Add
existing violations to baselines files to prepare for turning the
FlaggedApi checks into errors.

Bug: 303434307
Test: treehugger
Flag: EXEMPT not possible to flag baseline changes
Merged-In: I990ce57cd5cdac44ee8b93565b45aa15790ad697
Change-Id: I990ce57cd5cdac44ee8b93565b45aa15790ad697
diff --git a/framework-t/Android.bp b/framework-t/Android.bp
index bc919ac..f076f5b 100644
--- a/framework-t/Android.bp
+++ b/framework-t/Android.bp
@@ -201,6 +201,9 @@
         "com.android.net.thread.flags-aconfig",
         "nearby_flags",
     ],
+    lint: {
+        baseline_filename: "lint-baseline.xml",
+    },
 }
 
 // This rule is not used anymore(b/268440216).