Add file contexts for com.android.scheduling

Test: Build and flash
Bug: 161353402
Change-Id: I0e897dae34650022dc36cd95bc8519339d615bf8
diff --git a/apex/com.android.scheduling-file_contexts b/apex/com.android.scheduling-file_contexts
new file mode 100644
index 0000000..9398505
--- /dev/null
+++ b/apex/com.android.scheduling-file_contexts
@@ -0,0 +1 @@
+(/.*)?           u:object_r:system_file:s0