b/2005377 Fixed the problem where previously paired devics can't be access(grayed out) in Bluetooth settings after a reboot.

src/com/android/settings/bluetooth/BluetoothDevicePreference.java

@@ -97,6 +97,8 @@ public class BluetoothDevicePreference extends Preference implements LocalBlueto
 
     @Override
     public boolean isEnabled() {
+        // Temp fix until we have 2053751 fixed in the framework
+        setEnabled(true);
         return super.isEnabled() && !mIsBusy;
     }