Refactoring FBE APIs based on council feedback.

Mostly consists of removing the word "encryption" from most APIs,
since we can't actually make promises about the data being encrypted.

Bug: 27531029
Change-Id: Iace9d7c4e64716abf86ed11847c40f3947e1d625
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index 334035c..073cf14 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -167,8 +167,8 @@
         android:process="com.android.systemui"
         android:supportsRtl="true"
         android:theme="@style/systemui_theme"
-        android:forceDeviceEncrypted="true"
-        android:encryptionAware="true">
+        android:defaultToDeviceProtectedStorage="true"
+        android:directBootAware="true">
         <!-- Keep theme in sync with SystemUIApplication.onCreate().
              Setting the theme on the application does not affect views inflated by services.
              The application theme is set again from onCreate to take effect for those views. -->