Disable Fold lock behavior setting by default

Flag protect Fold lock behavior setting behind a sysprop flag.
The setting will be disabled by default and can be
teamfooded by enabling sysprop flag with prop name
persist.fold_lock_setting_enabled.
Enable sysprop flag by running following command
* adb root && adb shell setprop persist.fold_lock_setting_enabled true

Flag: persist.fold_lock_setting_enabled
Bug: 298200843
Test: atest FoldSettingProviderTest FoldLockBehaviorPreferenceControllerTest
* Manually check if the setting accessible with sysprop flag true and
false.

Change-Id: Iaca4333b3e50383a621b5ae5f704410648ed205f
diff --git a/Android.bp b/Android.bp
index f1a3af27..36adf1f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -389,6 +389,7 @@
     static_libs: [
         "android.hardware.common.fmq-V1-java",
         "bouncycastle-repackaged-unbundled",
+        "com.android.sysprop.foldlockbehavior",
         "framework-internal-utils",
         // If MimeMap ever becomes its own APEX, then this dependency would need to be removed
         // in favor of an API stubs dependency in java_library "framework" below.