Add PlatformCompat feature for DocumentUI

- Whitelist PlatformCompat permissions for DocumentsUI
- Add documents-ui-compat-config into Android.bp

Bug: 141600225
Test: build and boot to home
Test: tools/tradefederation/core/tests/run_tradefed_tests.sh \
      --class com.google.android.asit.DeviceBootTestTest
Change-Id: Iedf73faf497a4ea055b33f68dc0b7097f306791d
diff --git a/Android.bp b/Android.bp
index 4a1f96e..5e068ee 100644
--- a/Android.bp
+++ b/Android.bp
@@ -481,6 +481,7 @@
         "framework-platform-compat-config",
         "libcore-platform-compat-config",
         "services-platform-compat-config",
+        "documents-ui-compat-config",
     ],
     static_libs: [
         // If MimeMap ever becomes its own APEX, then this dependency would need to be removed