Apply signed config on package upgrade/install.

Signature check is not implemented yet, so no configuration can be
applied yet.

Tested with CTS test & follow up changes in later CLs.

For future reference:
Test: atest CtsSignedConfigHostTestCases

Bug: 110509075
Change-Id: I2d2f15d38ec0f1755e21e6e5ab5c82d94aa592a4
diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index f1ed1c2..69bc4a2 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -414,6 +414,7 @@
                     Settings.Global.SHOW_NOTIFICATION_CHANNEL_WARNINGS,
                     Settings.Global.SHOW_RESTART_IN_CRASH_DIALOG,
                     Settings.Global.SHOW_TEMPERATURE_WARNING,
+                    Settings.Global.SIGNED_CONFIG_VERSION,
                     Settings.Global.SMART_SELECTION_UPDATE_CONTENT_URL,
                     Settings.Global.SMART_SELECTION_UPDATE_METADATA_URL,
                     Settings.Global.SMS_ACCESS_RESTRICTION_ENABLED,