Add file contexts for FederatedCompute.

Test: TH
Change-Id: If302dc80a5be0b72e417698a60a92a05bedde8a1
diff --git a/apex/Android.bp b/apex/Android.bp
index 8c9db86..22b021f 100644
--- a/apex/Android.bp
+++ b/apex/Android.bp
@@ -99,6 +99,13 @@
 }
 
 filegroup {
+  name: "com.android.federatedcompute-file_contexts",
+  srcs: [
+    "com.android.federatedcompute-file_contexts",
+  ],
+}
+
+filegroup {
   name: "com.android.geotz-file_contexts",
   srcs: [
     "com.android.geotz-file_contexts",